User manual LINKSYS WRT54GX

® A Division of Cisco Systems, Inc. 2.4 GHz Wireless-G 802.11g Broadband Router WIRELESS with SRX User Guide Model No. WRT54GX Wireless-G Broadband Router with SRX Copyright and Trademarks Specifications are subject to change without notice. Linksys is a registered trademark or trademark of Cisco Systems, Inc. and/or its affiliates in the U.S. and certain other countries. Copyright © 2005 Cisco Systems, Inc. All rights reserved. Other brands and product names are trademarks or registered trademarks of their respective holders. WARNING: This product contains chemicals, including lead, known to the State of California to cause cancer, and birth defects or other reproductive harm. Wash hands after handling. How to Use This User Guide This User Guide has been designed to make understanding networking with the Wireless-G Broadband Router easier than ever. Look for the following items when reading this User Guide: This checkmark means there is a note of interest and is something you should pay special attention to while using the Wireless-G Broadband Router. This exclamation point means there is a caution or warning and is something that could damage your property or the Wireless-G Broadband Router. This question mark provides you with a reminder about something you might need to do while using the Wireless-G Broadband Router. In addition to these symbols, there are definitions for technical terms that are presented like this: word: definition. Also, each figure (diagram, screenshot, or other image) is provided with a figure number and description, like this: Figure 0-1: Sample Figure Description Figure numbers and descriptions can also be found in the "List of Figures" section in the "Table of Contents". WRT54GX-UG-50225A BW Wireless-G Broadband Router with SRX Table of Contents Chapter 1: Introduction Welcome What's in this Guide? 1 1 2 Chapter 2: Planning Your Wireless Network Network Topology Ad-Hoc versus Infrastructure Mode Network Layout 4 4 4 4 Chapter 3: Getting to Know the Wireless-G Broadband Router The Back Panel The Front Panel 6 6 7 Chapter 4: Connecting the Wireless-G Broadband Router Overview Hardware Installation for Connection to Your Broadband Modem 8 8 8 Chapter 5: Configuring the Wireless-G Broadband Router Overview The Setup Tab - Basic Setup The Setup Tab - DDNS The Setup Tab - MAC Address Clone The Setup Tab - Advanced Routing The Wireless Tab - Basic Wireless Settings The Wireless Tab - Wireless Security The Wireless Tab - Wireless MAC Filter The Wireless Tab - Advanced Wireless Settings The Security Tab - Firewall The Access Restrictions Tab - Internet Access The Applications and Gaming Tab - Port Range Forward The Applications and Gaming Tab - Port Triggering The Applications and Gaming Tab - DMZ The Applications and Gaming Tab - UPnP Forwarding The Administration Tab - Management The Administration Tab - Log The Administration Tab - Diagnostics 9 9 10 15 16 17 18 19 21 22 23 24 26 26 27 27 28 29 29 Wireless-G Broadband Router with SRX The Administration Tab - Factory Defaults The Administration Tab - Firmware Upgrade The Administration Tab - Config Management The Status Tab - Router The Status Tab - Local Network The Status Tab - Wireless The Status Tab - System Performance 30 30 31 31 32 33 34 Appendix A: Troubleshooting Common Problems and Solutions Frequently Asked Questions 36 36 45 Appendix B: Wireless Security Security Precautions Security Threats Facing Wireless Networks 51 51 51 Appendix C: Upgrading Firmware 54 Appendix D: Windows Help 55 Appendix E: Finding the MAC Address and IP Address for Your Ethernet Adapter 56 Windows 98SE or Me Instructions Windows 2000 or XP Instructions For the Router's Web-based Utility 56 57 57 Appendix F: Glossary Appendix G: Specifications Appendix H: Warranty Information Appendix I: Regulatory Information Appendix J: Contact Information 58 64 66 67 69 Wireless-G Broadband Router with SRX List of Figures Figure 3-1: The Router's Back Panel Figure 3-2: The Router's Reset Button Figure 3-3: The Router's LEDs Figure 4-1: The Router's Ports Figure 5-1: Password Screen Figure 5-2: Setup Tab - Basic Setup Figure 5-3: DHCP Connection Type Figure 5-4: Static IP Connection Type Figure 5-5: PPPoE Connection Type Figure 5-6: PPTP Connection Type Figure 5-7: Telstra BigPond Connection Type Figure 5-8: Optional Settings Figure 5-9: Router IP Figure 5-10: Network Address Server Settings Figure 5-11: Time Setting Figure 5-12: Setup Tab - DDNS Figure 5-13: Setup Tab - MAC Address Clone Figure 5-14: Setup Tab - Advanced Routing Figure 5-15: Setup Tab - Advanced Routing - NAT Mode Figure 5-16: Wireless Tab - Basic Wireless Settings Figure 5-17: Wireless Tab - Wireless Security (WPA Pre-Shared Key) Figure 5-18: Wireless Tab - Wireless Security (WPA RADIUS) Figure 5-19: Wireless Tab - Wireless Security (WEP) Figure 5-20: Wireless Tab - Wireless MAC Filter Figure 5-21: Wireless Tab - Wireless MAC Filter - Networked Computers Figure 5-22: Wireless Tab - Advanced Wireless Settings Figure 5-23: Security Tab - Firewall Figure 5-24: AAccess Restrictions Tab - Internet Access Figure 5-25: Internet Policy Summary Figure 5-26: List of PCs 6 6 7 8 9 10 10 11 11 12 12 13 13 14 14 15 16 17 17 18 19 19 20 21 21 22 23 24 24 25 Wireless-G Broadband Router with SRX Figure 5-27: Port Services Figure 5-28: Applications and Gaming Tab - Port Range Forward Figure 5-29: Applications and Gaming Tab - Port Triggering Figure 5-30: Applications and Gaming Tab - DMZ Figure 5-31: Applications and Gaming Tab - UPnP Forwarding Figure 5-32: Administration Tab - Management Figure 5-33: Administration Tab - Log Figure 5-34: Administration Tab - Diagnostics Figure 5-35: Administration Tab - Factory Defaults Figure 5-36: Administration Tab - Firmware Upgrade Figure 5-37: Administration Tab - Config Management Figure 5-38: Status Tab - Router Figure 5-39: Status Tab - Local Network Figure 5-40: Status Tab - Wireless Figure 5-41: Status Tab - System Performance Figure C-1: Upgrade Firmware Figure E-1: IP Configuration Screen Figure E-2: MAC Address/Adapter Address Figure E-3: MAC Address/Physical Address Figure E-4: MAC Address Filter List Figure E-5: MAC Address Clone 25 26 26 27 27 28 29 29 30 30 31 31 32 33 34 54 56 56 56 57 57 Wireless-G Broadband Router with SRX Chapter 1: Introduction Welcome Thank you for choosing the Linksys Wireless-G Broadband Router with SRX. The Wireless-G Broadband Router with SRX will allow you to network wirelessly better than ever, sharing Internet access, files and fun, easily and securely. How does the Wireless-G Broadband Router with SRX do all of this? A router is a device that allows access to an Internet connection over a network. With the Wireless-G Broadband Router with SRX, this access can be shared over the four switched ports or via the wireless network, broadcast at either 11Mbps for Wireless-B or 54Mbps for Wireless-G. In addition, WPA encryption provides greater security opportunities while the whole network is protected through a Stateful Packet Inspection (SPI) firewall and NAT technology. All of these security features, as well as full configurability, are accessed through the easy-to-use browser-based utility. But what does all of this mean? Networks are useful tools for sharing computer resources. You can access one printer from different computers and access data located on another computer's hard drive. Networks are even used for playing multiplayer video games. So, networks are not only useful in homes and offices, they can also be fun. PCs on a wired network create a Local Area Network. They are connected with Ethernet cables, which is why the network is called "wired". PCs equipped with wireless cards or adapters can communicate without cumbersome cables. By sharing the same wireless settings, within their transmission radius, they form a wireless network. The Wireless-G Broadband Router with SRX bridges wireless networks of both 802.11b and 802.11g standards and wired networks, allowing them to communicate with each other. With your networks all connected, wired, wireless, and the Internet, you can now share files and Internet access--and even play games. All the while, the Wireless-G Broadband Router with SRX protects your networks from unauthorized and unwelcome users. You should always use the Setup CD-ROM when you first install the Router. If you do not wish to run the Setup Wizard on the Setup CD-ROM, then use the instructions in this Guide to help you connect the Wireless-G Broadband Router with SRX, set it up, and configure it to bridge your different networks. These instructions should be all you need to get the most out of the Wireless-G Broadband Router with SRX. mbps: one million bits per second; a unit of measurement for data transmission browser: an application program that provides a way to look at and interact with all the information on the World Wide Web. lan (Local Area Network): The computers and networking products that make up the network in your home or office 802.11b: an IEEE wireless networking standard that specifies a maximum data transfer rate of 11Mbps and an operating frequency of 2.4GHz. 802.11b: an IEEE wireless networking standard that specifies a maximum data transfer rate of 54Mbps, an operating frequency of 2.4GHz, and backward compatibility with 802.11b devices. Chapter 1: Introduction Welcome 1 Wireless-G Broadband Router with SRX What's in this Guide? This user guide covers the steps for setting up and using the Wireless-G Broadband Router with SRX. · Chapter 1: Introduction This chapter describes the Router's applications and this User Guide. · Chapter 2: Planning Your Wireless Network This chapter describes the basics of wireless networking. · Chapter 3: Getting to Know the Wireless-G Broadband Router This chapter describes the Router's physical features. · Chapter 4: Connecting the Wireless-G Broadband Router This chapter instructs you on how to connect the Router to your network. · Chapter 5: Configuring the Wireless-G Broadband Router This chapter explains how to use the Router's Web-Based Utility. · Appendix A: Troubleshooting This appendix describes some problems and solutions, as well as frequently asked questions, regarding installation and use of the Wireless-G Broadband Router. · Appendix B: Wireless Security This appendix explains the risks of wireless networking and some solutions to reduce the risks. · Appendix C: Upgrading Firmware This appendix instructs you on how to upgrade the Router's firmware should you need to do so. · Appendix D: Windows Help This appendix describes how you can use Windows Help for instructions about networking, such as installing the TCP/IP protocol. · Appendix E: Finding the MAC Address and IP Address for your Ethernet Adapter. This appendix describes how to find the MAC address for your computer's Ethernet adapter so you can use the Router's MAC filtering and/or MAC address cloning feature. · Appendix F: Glossary This appendix gives a brief glossary of terms frequently used in networking. · Appendix G: Specifications This appendix provides the Router's technical specifications. Chapter 1: Introduction What's in this Guide? 2 Wireless-G Broadband Router with SRX · Appendix H: Warranty Information This appendix supplies the Router's warranty information. · Appendix I: Regulatory Information This appendix supplies the Router's regulatory information. · Appendix J: Contact Information This appendix provides contact information for a variety of Linksys resources, including Technical Support. Chapter 1: Introduction What's in this Guide? 3 Wireless-G Broadband Router with SRX Chapter 2: Planning Your Wireless Network Network Topology A wireless local area network is exactly like a regular local area network (LAN), except that each computer in the wireless network uses a wireless device to connect to the network. Computers in a wireless network share the same frequency channel and SSID, which is an identification name shared by the wireless devices belonging to the same wireless network. network: a series of computers or devices connected for the purpose of data sharing, storage, and/or transmission between users. ssid: your wireless network's name. Ad-Hoc versus Infrastructure Mode Unlike wired networks, wireless networks have two different modes in which they may be set up: infrastructure and ad-hoc. An infrastructure configuration is a wireless and wired network communicating to each other through an access point. An ad-hoc configuration is wireless-equipped computers communicating directly with each other. Choosing between these two modes depends on whether or not the wireless network needs to share data or peripherals with a wired network or not. If the computers on the wireless network need to be accessible by a wired network or need to share a peripheral, such as a printer, with the wired network computers, the wireless network should be set up in Infrastructure mode. The basis of Infrastructure mode centers around a wireless router or an access point, which serves as the main point of communications in a wireless network. The Router transmits data to PCs equipped with wireless network adapters, which can roam within a certain radial range of the Router. You can arrange the Router and multiple access points to work in succession to extend the roaming range, and you can set up your wireless network to communicate with your Ethernet hardware as well. If the wireless network is relatively small and needs to share resources only with the other computers on the wireless network, then the Ad-Hoc mode can be used. Ad-Hoc mode allows computers equipped with wireless transmitters and receivers to communicate directly with each other, eliminating the need for a wireless router or access point. The drawback of this mode is that in Ad-Hoc mode, wireless-equipped computers are not able to communicate with computers on a wired network. And, of course, communication between the wirelessequipped computers is limited by the distance and interference directly between them. ad-hoc: a group of wireless devices communicating directly to each other (peer-to-peer) without the use of an access point. Infrastructure: a wireless network that is bridged to a wired network via an access point. adapter: a device that adds network functionality to your PC ethernet: IEEE standard network protocol that specifies how data is placed on and retrieved from a common transmission medium access point: a device that allows wirelessequipped computers and other devices to communicate with a wired network. Also used to expand the range of a wireless network. Network Layout The Wireless-G Broadband Router has been specifically designed for use with both your 802.11b and 802.11g products. Now, products using these standards can communicate with each other. Chapter 2: Planning Your Wireless Network Network Topology 4 Wireless-G Broadband Router with SRX The Wireless-G Broadband Router is compatible with all 802.11b and 802.11g adapters, such as the Notebook Adapters (WPC54G, WPC11) for your laptop computers, PCI Adapter (WMP54G, WMP11) for your desktop PC, and USB Adapter (WUSB54G, WUSB11) when you want to enjoy USB connectivity. The Router will also communicate with the Wireless PrintServer (WPS54GU2, WPS11) and Wireless Ethernet Bridges (WET54G, WET11). When you wish to connect your wireless network with your wired network, you can use the Wireless-G Broadband Router's four LAN ports. To add more ports, any of the Wireless-G Broadband Router's LAN ports can be connected to any of Linksys's switches (such as the EZXS55W or EZXS88W). With these, and many other, Linksys products, your networking options are limitless. Go to the Linksys website at www.linksys.com for more information about products that work with the Wireless-G Broadband Router. Chapter 2: Planning Your Wireless Network Network Layout 5 Wireless-G Broadband Router with SRX Chapter 3: Getting to Know the Wireless-G Broadband Router The Back Panel The Router's ports, where the cables are connected, are located on the back panel. Reset Button There are two ways to reset the Router's factory defaults. Either press the Reset Button located on the bottom of the Router, for approximately five seconds, or restore the defaults from the Administration tab - Factory Defaults in the Router's Web-based Utility. The Internet port in blue is where you will connect your broadband Internet connection. These yellow ports (1, 2, 3, 4) connect the Router to PCs on your wired network and other Ethernet network devices. The Power port is where you will connect the power adapter. Figure 3-1: The Router's Back Panel Figure 3-2: The Router's Reset Button Internet Important: Resetting the Router will erase all of your settings (WEP Encryption, network settings, etc.) and replace them with the factory defaults. Do not reset the Router if you want to retain these settings. 1, 2, 3, 4 Power port: the connection point on a computer or networking device used for plugging in cables or adapters broadband: an always-on, fast Internet connection Chapter 3: Getting to Know the Wireless-G Broadband Router The Back Panel 6 Wireless-G Broadband Router with SRX The Front Panel The Router's LEDs, where information about network activity is displayed, are located on the front panel. 1, 2, 3, 4 Green. These numbered LEDs, corresponding with the numbered ports on the Router's back panel, serve two purposes. If the LED is continuously lit, the Router is successfully connected to a device through that po Green. The Internet LED lights up when there is a connection made through the Internet port.rt. A flashing LED indicates network activity over that port. Green. The Wireless LED lights up whenever there is a successful wireless connection. If the LED is flashing, the Router is actively sending or receiving data over the network. Green. The DMZ LED indicates when the DMZ function is being used. This LED will remain lit as long as DMZ is enabled. Green. The Power LED lights up and will stay on while the Router is powered on. When the Router goes through its self-diagnostic mode during every boot-up, this LED will flash. When the diagnostic is complete, the LED will be solidly lit. Internet Wireless DMZ Power Figure 3-3: The Router's LEDs dmz: removes the Router's firewall protection from one PC, allowing it to be "seen" from the Internet Chapter 3: Getting to Know the Wireless-G Broadband Router The Front Panel 7 Wireless-G Broadband Router with SRX Chapter 4: Connecting the Wireless-G Broadband Router Overview This chapter includes two sets of instructions. If the Wireless-G Broadband Router will be the only router in your network, follow the instructions in "Hardware Installation for Connection to Your Broadband Modem." If you want to install the Wireless-G Broadband Router behind another router in your network, follow the instructions in "Connecting One Router to Another." Hardware Installation for Connection to Your Broadband Modem 1. Power down your network devices. 2. Locate an optimum location for the Router. The best place for the Router is usually at the center of your wireless network, with line of sight to all of your mobile stations. 3. Fix the direction of the antennas. Try to place the Router in a position that will best cover your wireless network. Normally, the higher you place the antenna, the better the performance will be. 4. Connect a standard Ethernet network cable to the Router's blue Internet port. Then, connect the other end of the Ethernet cable to your cable or DSL broadband modem. 5. Connect your network PCs or Ethernet devices to the Router's yellow ports using standard Ethernet network cabling. 6. Connect the AC power adapter to the Router's Power port and the other end into an electrical outlet. Only use the power adapter supplied with the Router. Use of a different adapter may result in product damage. IMPORTANT: Make sure you use the power adapter that is supplied with the Router. Use of a different power adapter could damage the Router. Now that the hardware installation is complete, proceed to "Chapter 5: Configuring the Wireless-G Broadband Router," for directions on using the Router's Web-Based Utility to configure the Router's settings for your network. Figure 4-1: The Router's Ports Chapter 4: Connecting the Wireless-G Broadband Router Overview 8 Wireless-G Broadband Router with SRX Chapter 5: Configuring the Wireless-G Broadband Router Overview You should always use the Setup CD-ROM when first installing the Router. If you do not wish to run the Setup Wizard on the Setup CD-ROM, you can use the Web-based Utility to configure the Router. For advanced users, you may configure the Router's advanced settings through the Web-based Utility. This chapter will describe each web page in the Utility and each page's key functions. The utility can be accessed via your web browser through use of a computer connected to the Router. For a basic network setup, most users will use these two screens of the Utility: · Basic Setup. On the Basic Setup screen, enter the settings provided by your ISP. · Management. Click the Administration tab and then the Management tab. The Router's default password is admin. To secure the Router, change the Password from its default. There are seven main tabs: Setup, Wireless, Security, Access Restrictions, Applications & Gaming, Administration, and Status. Additional tabs will be available after you click one of the main tabs. To access the Web-based Utility, launch Internet Explorer or Netscape Navigator, and enter the Router's default IP address, 192.168.1.1, in the Address field. Then, press Enter. A password request page will appear. (Non-Windows XP users will see a similar screen.) Leave the User Name field blank. The first time you open the Web-based Utility, use the default password admin. (You can set a new password from the Administration tab's Management screen.) Click the OK button to continue. NOTE: When first installing the Router, you should use the Setup Wizard on the Setup CD-ROM. If you want to configure advanced settings, use this chapter to learn about the Web-based Utility. HAVE YOU: Enabled TCP/IP on your PCs? PCs communicate over the network with this protocol. Refer to "Appendix D: Windows Help" for more information on TCP/IP. Figure 5-1: Password Screen Chapter 5: Configuring the Wireless-G Broadband Router Overview 9 Wireless-G Broadband Router with SRX The Setup Tab - Basic Setup The first screen that appears displays the Setup tab. This allows you to change the Router's general settings. Change these settings as described here and click the Save Settings button to apply your changes or Cancel Changes to cancel your changes. Internet Setup The Internet Setup section configures the Router to your Internet connection. Most of this information can be obtained through your ISP. Internet Connection Type Choose the type of Internet connection your ISP provides from the drop-down menu. Figure 5-2: Setup Tab - Basic Setup · Automatic Configuration - DHCP. By default, the Router's Internet Connection Type is set to Automatic Configuration - DHCP, which should be kept only if your ISP supports DHCP or you are connecting through a dynamic IP address. Figure 5-3: DHCP Connection Type Chapter 5: Configuring the Wireless-G Broadband Router The Setup Tab - Basic Setup 10 Wireless-G Broadband Router with SRX · Static IP. If you are required to use a permanent IP address to connect to the Internet, select Static IP. Internet IP Address. This is the Router's IP address, when seen from the Internet. Your ISP will provide you with the IP Address you need to specify here. Subnet Mask. This is the Router's Subnet Mask, as seen by users on the Internet (including your ISP). Your ISP will provide you with the Subnet Mask. Gateway. Your ISP will provide you with the Gateway Address, which is the ISP server's IP address. Figure 5-4: Static IP Connection Type DNS. Your ISP will provide you with at least one DNS (Domain Name System) Server IP Address. static ip address: a fixed address assigned to a computer or device connected to a network. · PPPoE. Some DSL-based ISPs use PPPoE (Point-to-Point Protocol over Ethernet) to establish Internet connections. If you are connected to the Internet through a DSL line, check with your ISP to see if they use PPPoE. If they do, you will have to enable PPPoE. User Name and Password. Enter the User Name and Password provided by your ISP. Connect on Demand: Max Idle Time. You can configure the Router to cut the Internet connection after it has been inactive for a specified period of time (Max Idle Time). If your Internet connection has been terminated due to inactivity, Connect on Demand enables the Router to automatically re-establish your connection as soon as you attempt to access the Internet again. If you wish to activate Connect on Demand, click the radio button. In the Max Idle Time field, enter the number of minutes you want to have elapsed before your Internet connection terminates. Keep Alive Option: Redial Period. If you select this option, the Router will periodically check your Internet connection. If you are disconnected, then the Router will automatically re-establish your connection. To use this option, click the radio button next to Keep Alive. In the Redial Period field, you specify how often you want the Router to check the Internet connection. The default Redial Period is 30 seconds. Figure 5-5: PPPoE Connection Type pppoe: a type of broadband connection that provides authentication (username and password) in addition to data transport Chapter 5: Configuring the Wireless-G Broadband Router The Setup Tab - Basic Setup 11 Wireless-G Broadband Router with SRX · PPTP. Point-to-Point Tunneling Protocol (PPTP) is a service that applies to connections in Europe only. Specify Internet IP Address. This is the Router's IP address, as seen from the Internet. Your ISP will provide you with the IP Address you need to specify here. Subnet Mask. This is the Router's Subnet Mask, as seen by users on the Internet (including your ISP). Your ISP will provide you with the Subnet Mask. Gateway. Your ISP will provide you with the Gateway Address. User Name and Password. Enter the User Name and Password provided by your ISP. Connect on Demand: Max Idle Time. You can configure the Router to cut the Internet connection after it has been inactive for a specified period of time (Max Idle Time). If your Internet connection has been terminated due to inactivity, Connect on Demand enables the Router to automatically re-establish your connection as soon as you attempt to access the Internet again. If you wish to activate Connect on Demand, click the radio button. In the Max Idle Time field, enter the number of minutes you want to have elapsed before your Internet connection terminates. Keep Alive Option: Redial Period. If you select this option, the Router will periodically check your Internet connection. If you are disconnected, then the Router will automatically re-establish your connection. To use this option, click the radio button next to Keep Alive. In the Redial Period field, you specify how often you want the Router to check the Internet connection. The default Redial Period is 30 seconds. · Telstra BigPond. Telstra BigPond is a service that applies to connections in Australia only. User Name and Password. Enter the User Name and Password provided by your ISP. Heart Beat Server. This is the IP address that the Router has, when seen from the Internet. Your ISP will provide you with the IP Address you need to specify here. Figure 5-7: Telstra BigPond Connection Type Figure 5-6: PPTP Connection Type Chapter 5: Configuring the Wireless-G Broadband Router The Setup Tab - Basic Setup 12 Wireless-G Broadband Router with SRX Optional Settings Some of these settings may be required by your ISP. Verify with your ISP before making any changes. Router Name. In this field, you can type a name of up to 39 characters to represent the Router. Host Name/Domain Name. These fields allow you to supply a host and domain name for the Router. Some ISPs, usually cable ISPs, require these names as identification. You may have to check with your ISP to see if your broadband Internet service has been configured with a host and domain name. In most cases, leaving these fields blank will work. MTU. MTU is the Maximum Transmission Unit. It specifies the largest packet size permitted for Internet transmission. The default setting, Manual, allows you to enter the largest packet size that will be transmitted. The recommended size, entered in the Size field, is 1492. You should leave this value in the 1200 to 1500 range. To have the Router select the best MTU for your Internet connection, select Auto. Figure 5-8: Optional Settings packet: a unit of data sent over a network Network Setup The Network Setup section changes the settings on the network connected to the Router's Ethernet ports. Wireless Setup is performed through the Wireless tab. Router IP This presents both the Router's IP Address and Subnet Mask as seen by your network. Figure 5-9: Router IP Chapter 5: Configuring the Wireless-G Broadband Router The Setup Tab - Basic Setup 13 Wireless-G Broadband Router with SRX Network Address Server Settings (DHCP) The settings allow you to configure the Router's Dynamic Host Configuration Protocol (DHCP) server function. The Router can be used as a DHCP server for your network. A DHCP server automatically assigns an IP address to each computer on your network. If you choose to enable the Router's DHCP server option, you must configure all of your network PCs to connect to a DHCP server (the Router), and make sure there is no other DHCP server on your network. DHCP Server. DHCP is enabled by factory default. If you already have a DHCP server on your network, or you don't want a DHCP server, then click the Disable radio button (no other DHCP features will be available). Starting IP Address. Enter a value for the DHCP server to start with when issuing IP addresses. Because the Router's default IP address is 192.168.1.1, the Starting IP Address must be 192.168.1.2 or greater, but smaller than 192.168.1.253. The default Starting IP Address is 192.168.1.100. Maximum Number of DHCP Users. Enter the maximum number of PCs that you want the DHCP server to assign IP addresses to. This number cannot be greater than 253. The default is 50. Client Lease Time. The Client Lease Time is the amount of time a network user will be allowed connection to the Router with their current dynamic IP address. Enter the amount of time, in minutes, that the user will be "leased" this dynamic IP address. After the time is up, the user will be automatically assigned a new dynamic IP address. The default is 0 minutes, which means one day. Static DNS (1,2). The Domain Name System (DNS) is how the Internet translates domain or website names into Internet addresses or URLs. Your ISP will provide you with at least one DNS Server IP Address. If you wish to use another, type that IP Address in one of these fields. You can type up to three DNS Server IP Addresses here. The Router will use these for quicker access to functioning DNS servers. Figure 5-10: Network Address Server Settings Time Setting Change the time zone in which your network functions from this pull-down menu. (You can even automatically adjust for daylight savings time.) Figure 5-11: Time Setting Chapter 5: Configuring the Wireless-G Broadband Router The Setup Tab - Basic Setup 14 Wireless-G Broadband Router with SRX The Setup Tab - DDNS The Router offers a Dynamic Domain Name System (DDNS) feature. DDNS lets you assign a fixed host and domain name to a dynamic Internet IP address. It is useful when you are hosting your own website, FTP server, or other server behind the Router. Before you can use this feature, you need to sign up for DDNS service at www.dyndns.org, a DDNS service providers. DDNS Service. From this pull-down menu, enter the DDNS service with which you have membership. User Name. Enter the User Name for your DDNS account Password. Enter the Password for your DDNS account. Host Name. The is the DDNS URL assigned by the DDNS service. Internet IP Address. This is the Router's current IP Address as seen on the Internet. Status. This displays the status of the DDNS connection. Change these settings as described here and click the Save Settings button to apply your changes or Cancel Changes to cancel your changes. Figure 5-12: Setup Tab - DDNS ddns: allows the hosting of a website, FTP server, or e-mail server with a fixed domain name (e.g., www.xyz.com) and a dynamic IP address Chapter 5: Configuring the Wireless-G Broadband Router The Setup Tab - DDNS 15 Wireless-G Broadband Router with SRX The Setup Tab - MAC Address Clone A MAC address is a 12-digit code assigned to a unique piece of hardware for identification. Some ISPs will require you to register a MAC address in order to access the Internet. If you do not wish to re-register the MAC address with your ISP, you may assign the MAC address you have currently registered with your ISP to the Router with the MAC Address Clone feature. Enable/Disable. To have the MAC Address cloned, click the radio button beside Enable. User Defined Entry. Enter the MAC Address registered with your ISP here. Clone Your PC's MAC. Clicking this button will clone the MAC address. Change these settings as described here and click the Save Settings button to apply your changes or Cancel Changes to cancel your changes. Figure 5-13: Setup Tab - MAC Address Clone Chapter 5: Configuring the Wireless-G Broadband Router The Setup Tab - MAC Address Clone 16 Wireless-G Broadband Router with SRX The Setup Tab - Advanced Routing This tab is used to set up the Router's advanced functions. NAT Mode allows you to select the type(s) of advanced functions you use. Static Routing sets up a fixed route to another network destination. NAT Mode. Select the mode in which this Router will function. If this Router is hosting your network's connection to the Internet, select Enable. If another Router exists on your network, select Disable. Dynamic Routing. With Dynamic Routing you can enable the Router to automatically adjust to physical changes in the network's layout. The Router, using the RIP protocol, determines the network packets' route based on the fewest number of hops between the source and the destination. The RIP protocol regularly broadcasts routing information to other routers on the network. RIP. To use dynamic routing, click the Disabled radio button. Receive RIP Version. To use dynamic routing for reception of network data, select the protocol you want: Both RIP v1 and v2, RIPv1, or RIPv2. If you do not want to use this feature, select None. Transmit RIP Version. To use dynamic routing for transmission of network data, select the protocol you want: Both RIP v1 and v2, RIPv1, or RIPv2. If you do not want to use this feature, select None. Static Routing. To set up a static route between the Router and another network, select a number from the Static Routing drop-down list. (A static route is a pre-determined pathway that network information must travel to reach a specific host or network.) Enter the information described below to set up a new static route. (Click the Delete This Entry button to delete a static route.) Enter Route Name. Enter a name for the Route here, using a maximum of 25 alphanumeric characters. Destination LAN IP. The Destination LAN IP is the address of the remote network or host to which you want to assign a static route. Subnet Mask. The Subnet Mask determines which portion of a Destination LAN IP address is the network portion, and which portion is the host portion. Default Gateway. This is the IP address of the gateway device that allows for contact between the Router and the remote network or host. Interface. This interface tells you whether the Destination IP Address is on the LAN & Wireless (Ethernet and wireless networks), the WAN (Internet), or Loopback (a dummy network in which one PC acts like a network--necessary for certain software programs). Click the Show Routing Table button to view the Static Routes you've already set up. Chapter 5: Configuring the Wireless-G Broadband Router The Setup Tab - Advanced Routing Figure 5-14: Setup Tab - Advanced Routing default gateway: a device that forwards Internet traffic from your local area network Figure 5-15: Setup Tab - Advanced Routing - NAT Mode 17 Wireless-G Broadband Router with SRX Change these settings as described here and click the Save Settings button to apply your changes or Cancel Changes to cancel your changes. The Wireless Tab - Basic Wireless Settings The basic settings for wireless networking are set on this screen. Wireless Network Mode. From this drop-down menu, you can select the wireless standards running on your network. If you have both 802.11g and 802.11b devices in your network, keep the default setting, Mixed. If you have only 802.11g devices, select G-Only. If you have only 802.11b devices, select B-Only. If you do not have any 802.11g and 802.11b devices in your network, select Disable. SRX works automatically with all settings, providing the added bonus of increased speed across your entire network and even greater speed when using SRX products only. Wireless Network Name (SSID). The SSID is the network name shared among all points in a wireless network. The SSID must be identical for all devices in the wireless network. It is case-sensitive and must not exceed 32 characters (use any of the characters on the keyboard). Make sure this setting is the same for all points in your wireless network. For added security, you should change the default SSID (linksys) to a unique name. Wireless Channel. Select the appropriate channel from the list provided to correspond with your network settings. All devices in your wireless network must be broadcast on the same channel in order to function correctly. Wireless SSID Broadcast. When wireless clients survey the local area for wireless networks to associate with, they will detect the SSID broadcast by the Router. To broadcast the Router's SSID, keep the default setting, Enable. If you do not want to broadcast the Router's SSID, then select Disable. Figure 5-16: Wireless Tab - Basic Wireless Settings QoS Configuration. Quality of Service (QoS) ensures better service to high-priority types of network traffic, which may involve demanding, real-time applications, such as videoconferencing. ACK Mode. This setting prioritizes QoS for users who also have ACK Mode enabled. Users with Immediate ACK (the default setting) will experience reliable connectivity for normal network use. Burst ACK is faster but less reliable and may also affect long-range wireless performance. The No ACK setting disables the ACK feature. Clients utilizing ACK must have their wireless adapter on the same setting as the Router. 802.11e QoS. This setting prioritized QoS for uses who have this setting enabled on their wireless adapter. Change these settings as described here and click the Save Settings button to apply your changes or Cancel Changes to cancel your changes. Chapter 5: Configuring the Wireless-G Broadband Router The Wireless Tab - Basic Wireless Settings 18 Wireless-G Broadband Router with SRX The Wireless Tab - Wireless Security The Wireless Security settings configure the security of your wireless network. There are four wireless security mode options supported by the Router: WPA Pre-Shared Key, WPA RADIUS, and WEP. (WPA stands for Wi-Fi Protected Access, which is a security standard stronger than WEP encryption. WEP stands for Wired Equivalent Privacy, while RADIUS stands for Remote Authentication Dial-In User Service.) These three are briefly discussed here. For detailed instructions on configuring wireless security for the Router, turn to "Appendix B: Wireless Security." WPA Pre-Shared Key. WPA gives you two encryption methods, TKIP and AES, with dynamic encryption keys. Select the type of algorithm, TKIP or AES. Enter a WPA Shared Key of 8-63 characters. Then enter a Group Key Renewal period, which instructs the Router how often it should change the encryption keys. WPA RADIUS. This option features WPA used in coordination with a RADIUS server. (This should only be used when a RADIUS server is connected to the Router.) First, select the type of WPA algorithm you want to use, TKIP or AES. Enter the RADIUS server's IP Address and port number, along with a key shared between the Router and the server. Last, enter a Key Renewal Timeout, which instructs the Router how often it should change the encryption keys. IMPORTANT: If you are using WPA, always remember that each device in your wireless network MUST use the same WPA method and shared key, or else the network will not function properly. Figure 5-17: Wireless Tab - Wireless Security (WPA Pre-Shared Key) Figure 5-18: Wireless Tab - Wireless Security (WPA RADIUS) Chapter 5: Configuring the Wireless-G Broadband Router The Wireless Tab - Wireless Security 19 Wireless-G Broadband Router with SRX WEP. WEP is a basic encryption method, which is not as secure as WPA. To use WEP, select a Default Transmit Key (choose which Key to use), and a level of WEP encryption, 64 bits 10 hex digits or 128 bits 26 hex digits. Then either generate a WEP key using the Passphrase or enter the WEP key manually. Change these settings as described here and click the Save Settings button to apply your changes or Cancel Changes to cancel your changes. For detailed instructions on configuring wireless security for the Router, turn to "Appendix B: Wireless Security." IMPORTANT: If you are using WEP encryption, always remember that each device in your wireless network MUST use the same WEP encryption method and encryption key, or else your wireless network Figure 5-19: Wireless Tab - Wireless Security (WEP) Chapter 5: Configuring the Wireless-G Broadband Router The Wireless Tab - Wireless Security 20 Wireless-G Broadband Router with SRX The Wireless Tab - Wireless MAC Filter Wireless access can be filtered by using the MAC addresses of the wireless devices transmitting within your network's radius. Wireless MAC Filter. To filter wireless users by MAC Address, either permitting or blocking access, click Enable. If you do not wish to filter users by MAC Address, select Disable. Prevent. Clicking this button will block wireless access by MAC Address. Permit Only. Clicking this button will allow wireless access by MAC Address. There are 50 fields provided in which you can list users, by MAC Address, whose access you wish to provide or block. Just enter the MAC Address for the PC whose access you want to filter in one of the fields .For a more convenient way to add MAC addresses, click the Select MAC Address From Networked Computers button. The Networked Computers screen will appear. Select the MAC Addresses you want. Then click the Select button. Click the Refresh button if you want to refresh the screen. Click the Close button to return to the previous screen. Change these settings as described here and click the Save Settings button to apply your changes or Cancel Changes to cancel your changes. Figure 5-20: Wireless Tab - Wireless MAC Filter Figure 5-21: Wireless Tab - Wireless MAC Filter - Networked Computers Chapter 5: Configuring the Wireless-G Broadband Router The Wireless Tab - Wireless MAC Filter 21 Wireless-G Broadband Router with SRX The Wireless Tab - Advanced Wireless Settings This tab is used to set up the Router's advanced wireless functions. These settings should only be adjusted by an expert administrator as incorrect settings can reduce wireless performance. Basic Rate Set. The Basic Rate setting is not actually one rate of transmission but a series of rates at which the Router can transmit. The Router will advertise its Basic Rate to the other wireless devices in your network, so they know which rates will be used. The Router will also advertise that it will automatically select the best rate for transmission. The default setting is Default, when the Router can transmit at all standard wireless rates (1-2Mbps, 5.5Mbps, 11Mbps, 18Mbps, and 24Mbps). Other options are 1-2Mbps, for use with older wireless technology, and All, when the Router can transmit at all wireless rates. The Basic Rate is not the actual rate of data transmission. If you want to specify the Router's rate of data transmission, configure the Transmission Rate setting. Transmission Rate. The rate of data transmission should be set depending on the speed of your wireless network. You can select from a range of transmission speeds, or you can select Auto to have the Router automatically use the fastest possible data rate and enable the Auto-Fallback feature. Auto-Fallback will negotiate the best possible connection speed between the Router and a wireless client. The default value is Auto. CTS Protection Mode. CTS (Clear-To-Send) Protection Mode should remain disabled unless you are having severe problems with your Wireless-G products not being able to transmit to the Router in an environment with heavy 802.11b traffic. This function boosts the Router's ability to catch all Wireless-G transmissions but will severely decrease performance. Beacon Interval. The default value is 100. Enter a value between 1 and 65,535 milliseconds. The Beacon Interval value indicates the frequency interval of the beacon. A beacon is a packet broadcast by the Router to synchronize the wireless network. DTIM Interval. This value, between 1 and 255, indicates the interval of the Delivery Traffic Indication Message (DTIM). A DTIM field is a countdown field informing clients of the next window for listening to broadcast and multicast messages. When the Router has buffered broadcast or multicast messages for associated clients, it sends the next DTIM with a DTIM Interval value. Its clients hear the beacons and awaken to receive the broadcast and multicast messages. The default value is 1. Fragmentation Threshold. This value specifies the maximum size for a packet before data is fragmented into multiple packets. If you experience a high packet error rate, you may slightly increase the Fragmentation Threshold. Setting the Fragmentation Threshold too low may result in poor network performance. Only minor reduction of the default value is recommended. In most cases, it should remain at its default value of 2346. Figure 5-22: Wireless Tab - Advanced Wireless Settings cts (clear to send): a signal sent by a wireless device, signifying that it is ready to receive data beacon interval: data transmitted on your wireless network that keeps the network synchronized dtim: a message included in data packets that can increase wireless efficiency. fragmentation: breaking a packet into smaller units when transmitting over a network medium that cannot support the original size of the packet. Chapter 5: Configuring the Wireless-G Broadband Router The Wireless Tab - Advanced Wireless Settings 22 Wireless-G Broadband Router with SRX RTS Threshold. Should you encounter inconsistent data flow, only minor reduction of the default value, 2347, is recommended. If a network packet is smaller than the preset RTS threshold size, the RTS/CTS mechanism will not be enabled. The Router sends Request to Send (RTS) frames to a particular receiving station and negotiates the sending of a data frame. After receiving an RTS, the wireless station responds with a Clear to Send (CTS) frame to acknowledge the right to begin transmission. The RTS Threshold value should remain at its default value of 2347. Preamble Type. The preamble defines the length of the CRC block for communication between the Router and the roaming Network Card. (High network traffic areas should use the shorter preamble type.) Select the appropriate preamble type, Long Preamble (default) or Short Preamble. Network Density. This setting is a reflection of the Router's range. Setting the density to Low provides you with a greater range. Setting the density to High gives you a lower range. The default setting is Medium. Change these settings as described here and click the Save Settings button to apply your changes or Cancel Changes to cancel your changes. The Security Tab - Firewall Firewall Protection. Enable this feature to employ Stateful Packet Inspection (SPI) for more detailed review of data packets entering your network environment. Block WAN Ping. Enable the Block WAN Ping feature by checking the box beside Block WAN Ping and you can prevent your network from being "pinged," or detected, by other Internet users. The Block WAN Ping feature also reinforces your network security by hiding your network ports. Both functions of the Block WAN Ping feature make it more difficult for outside users to work their way into your network. This feature is enabled by default. VPN Passthrough. These settings allow VPN tunnels using IPSec, PPTP, or L2TP protocols to pass through the Router's firewall. Internet Protocol Security (IPSec) is a suite of protocols used to implement secure exchange of packets at the IP layer. To allow IPSec tunnels to pass through the Router, click Enable. Point-to-Point Tunneling Protocol (PPTP) allows the Point-to-Point Protocol (PPP) to be tunneled through an IP network. To allow PPTP tunnels to pass through the Router, click Enable. Layer 2 Tunneling Protocol (L2TP) is the method used to enable Point-to-Point sessions via the Internet on the Layer 2 level. To allow L2TP tunnels to pass through the Router, click Enable. Change these settings as described here and click the Save Settings button to apply your changes or Cancel Changes to cancel your changes. Figure 5-23: Security Tab - Firewall firewall: a set of related programs located at a network gateway server that protects the resources of a network from users from other networks. Chapter 5: Configuring the Wireless-G Broadband Router The Security Tab - Firewall 23 Wireless-G Broadband Router with SRX The Access Restrictions Tab - Internet Access The Internet Access screen allows you to block or allow specific kinds of Internet usage and traffic, such as Internet access, designated services, websites, and inbound traffic during specific days and times. Internet Access Policy. Access can be managed by a policy. Use the settings on this screen to establish an access policy (after the Save Settings button is clicked). Selecting a policy from the drop-down menu will display that policy's settings. To delete a policy, select that policy's number and click the Delete button. To view all the policies, click the Summary button. (Policies can be deleted from the Summary screen by selecting the policy or policies and clicking the Delete button. To return to the Internet Access tab, click the Close button.) Status. Policies are disabled by default. To enable a policy, select the policy number from the drop-down menu, and click the radio button beside Enable. You can create a policy to manage Internet access. To create an Internet Access policy: 1. Select a number from the Internet Access Policy drop-down menu. Figure 5-24: AAccess Restrictions Tab - Internet Access 2. To enable this policy, click the radio button beside Enable. 3. Enter a Policy Name in the field provided. 4. Click the Edit List button to select which PCs will be affected by the policy. The List of PCs screen will appear. You can select a PC by MAC Address or IP Address. You can also enter a range of IP Addresses if you want this policy to affect a group of PCs. After making your changes, click the Save Settings button to apply your changes or Cancel Changes to cancel your changes. Then click the Close button. Figure 5-25: Internet Policy Summary Chapter 5: Configuring the Wireless-G Broadband Router The Access Restrictions Tab - Internet Access 24 Wireless-G Broadband Router with SRX 5. Click the appropriate option, Deny or Allow, depending on whether you want to block or allow Internet access for the PCs you listed on the List of PCs screen (shown in Figure 5-26). 6. Decide which days and what times you want this policy to be enforced. Select the individual days during which the policy will be in effect, or select Everyday. Then enter a range of hours and minutes during which the policy will be in effect, or select 24 Hours. 7. You can filter access to various services accessed over the Internet, such as FTP or telnet, by selecting services from the drop-down menus next to Blocked Services. (You can block up to 20 services.) Then enter the range of ports you want to filter. If the service you want to block is not listed or you want to edit a service's settings, then click the Add/Edit Service button. Then the Port Services screen will appear. To add a service, enter the service's name in the Service Name field. Select its protocol from the Protocol drop-down menu, and enter its range in the Port Range fields. Then click the Add button. To modify a service, select it from the list on the right. Change its name, protocol setting, or port range. Then click the Modify button. To delete a service, select it from the list on the right. Then click the Delete button. When you are finished making changes on the Port Services screen, click the Apply button to save changes. If you want to cancel your changes, click the Cancel button. To close the Port Services screen and return to the Access Restrictions screen, click the Close button. 8. If you want to block websites with specific URL addresses, enter each URL in a separate field next to Website Blocking by URL Address. 9. If you want to block websites using specific keywords, enter each keyword in a separate field next to Website Blocking by Keyword. 10. Click the Save Settings button to save the policy's settings. To cancel the policy's settings, click the Cancel Changes button. Figure 5-27: Port Services Figure 5-26: List of PCs ftp: a protocol used to transfer files over a TCP/IP network telnet: a user command and TCP/IP protocol used for accessing remote PCs url: the address of a file located on the Internet Chapter 5: Configuring the Wireless-G Broadband Router The Access Restrictions Tab - Internet Access 25 Wireless-G Broadband Router with SRX The Applications and Gaming Tab - Port Range Forward The Applications and Gaming Tab allows you to set up public services on your network, such as web servers, ftp servers, e-mail servers, or other specialized Internet applications. (Specialized Internet applications are any applications that use Internet access to perform functions such as videoconferencing or online gaming. Some Internet applications may not require any forwarding.) To forward a port, enter the information on each line for the criteria required. Descriptions of each criteria are described here. Application. In this field, enter the name you wish to give the application. Each name can be up to 12 characters. Start/End. This is the port range. Enter the number that starts the port range under Start and the number that ends the range under End. Protocol. Enter the protocol used for this application, either TCP or UDP, or Both. IP Address. For each application, enter the IP Address of the PC running the specific application. Enable. Click the Enable checkbox to enable port forwarding for the relevant application. Change these settings as described here and click the Save Settings button to apply your changes or Cancel Changes to cancel your changes. Figure 5-28: Applications and Gaming Tab Port Range Forward The Applications and Gaming Tab - Port Triggering Port Triggering is used for special applications that can request a port to be opened on demand. For this feature, the Gateway will watch outgoing data for specific port numbers. The Gateway will remember the IP address of the computer that sends a transmission requesting data, so that when the requested data returns through the Gateway, the data is pulled back to the proper computer by way of IP address and port mapping rules. · Application. Enter the name you wish to give each application. · Start Port and End Port. Enter the starting and ending Triggered Range numbers and the Forwarded Range numbers of the port you wish to forward. After entering the information, click the Enable box to enable that port. When finished making your changes on this tab, click the Save Settings button to save these changes, or click the Cancel Changes button to undo your changes. Figure 5-29: Applications and Gaming Tab Port Triggering 26 Chapter 5: Configuring the Wireless-G Broadband Router The Applications and Gaming Tab - Port Range Forward Wireless-G Broadband Router with SRX The Applications and Gaming Tab - DMZ The DMZ feature allows one network user to be exposed to the Internet for use of a special-purpose service such as Internet gaming or videoconferencing. DMZ hosting forwards all the ports at the same time to one PC. The Port Range Forward feature is more secure because it only opens the ports you want to have opened, while DMZ hosting opens all the ports of one computer, exposing the computer to the Internet. Any PC whose port is being forwarded must have its DHCP client function disabled and should have a new static IP address assigned to it because its IP address may change when using the DHCP function. To expose one PC, select Enable. Then, enter the computer's IP address in the DMZ Host IP Address field. Change these settings as described here and click the Save Settings button to apply your changes or Cancel Changes to cancel your changes. Figure 5-30: Applications and Gaming Tab - DMZ The Applications and Gaming Tab - UPnP Forwarding The UPnP Forwarding screen provides options for customization of port services for applications. Make sure that you have UPnP enabled on your computer to use UPnP Forwarding. UPnP Forwarding Application. In this field, enter the name you wish to give the application. Each name can be up to 12 characters. Protocol. Enter the protocol used for this application, either TCP or UDP, or Both. External Port. Enter the number of the external port used by the server. Check with the Internet application documentation for more information. Internal Client. For each application, enter the IP Address of the server that you want the Internet users to be able to access. Internal Port. Enter the number of the internal port used by the server. Check with the Internet application software documentation for more information. Enabled. Click the Enabled checkbox to enable UPnP forwarding for the relevant application. Figure 5-31: Applications and Gaming Tab - UPnP Forwarding Chapter 5: Configuring the Wireless-G Broadband Router The Applications and Gaming Tab - DMZ 27 Wireless-G Broadband Router with SRX When you have finished making changes to the screen, click the Save Settings button to save the changes, or click the Cancel Changes button to undo your changes. For help information, click More. The Administration Tab - Management This section of the Administration tab allows the network's administrator to manage specific Router functions for access and security. Local Router Access. You can change the Router's password from here. Enter a new Router password and then type it again in the Re-enter to confirm field to confirm. Remote Router Access. To access the Router remotely, from outside the network, verify that Enable is selected. Then, enter the port number that will be open to outside access. You will need to enter the Router's password when accessing the Router this way, as usual. SNMP Simple Network Management Protocol provides network administrators with the ability to monitor the status of the Router and receive notification of any critical events as they occur on the network. To enable SNMP, check the Enabled box. To configure SNMP, complete all fields. To disable SNMP, remove the checkmark. Contact. Enter the name of the network administrator for the Router, and a contact number or e-mail address. Device Name. Enter the name of the Router. Location. Enter the location of the Router. For example, you could include the name of the building, floor number, and room location, such as Head Office - Floor 5 - Networking 3. Get Community. Enter the password that allows read-only access to the Router's SNMP information. The default name is public. Set Community. Enter the password that allows read/write access to the Router's SNMP information.The default name is private. A name must be entered in this field. SNMP Trap-Community. Enter the password required by the remote host computer that will receive trap messages or notices sent by the Router. SNMP Trap-Destination. Enter the IP address of the remote host computer that will receive the trap messages. Figure 5-32: Administration Tab - Management Chapter 5: Configuring the Wireless-G Broadband Router The Administration Tab - Management 28 Wireless-G Broadband Router with SRX UPnP UPnP. UPnP allows Windows XP and Windows Me to automatically configure the Router for various Internet applications, such as gaming and videoconferencing.To enable UPnP, check the Enabled box. Because allowing this may present a risk to security, this feature is disabled by default. Change these settings as described here and click the Save Settings button to apply your changes or Cancel Changes to cancel your changes. The Administration Tab - Log When you click the Administration tab, you will see the Log screen. The Log screen provides you with options for system, Firewall, WAN Connection, and New Traffic logs. of all incoming and outgoing URLs or IP addresses for your Internet connection. To enable the Router's log function, click the radio button beside Enabled, and check the box next to the type of log that you want.Then, click Show Log to view the log. If you do not wish to have logs, click the radio button beside Disabled. System Log.You can view logs for events relating to your system: Unauthorized Login Attempt, Update Time By NTP Client, and Authorized Login. Firewall Log. You can view logs for specific types of Internet attacks and events: Syn Flooding, IP Spoofing, Deny Policies, Allow Policies, Content Filtering, ICMP Redirect, TCP Null Scan, Smurf Attack, RIP Detect, UDP Flood, and ICMP flood. WAN Connection Log. You can view outgoing connection logs for: Failed Connection and Successful Connection New Traffic Log. You can view outgoing and Incoming traffic logs: WAN to LAN and LAN to WAN. When you have finished making changes on this screen, click the Save Settings button to save the changes, or click the Cancel Changes button to undo your changes. Figure 5-33: Administration Tab - Log The Administration Tab - Diagnostics The diagnostic tests (Ping and Traceroute) allow you to check the connections of your network components. Ping Test. The Ping test will check the status of a connection. To start the test, enter the IP address of the PC whose connection you wish to test, how many times you wish to test it, and the size of the packet for testing. Then, click the Start Test button. The test field will show if the test was successful. To stop the test, click the Abort Test button. Click the Clear button to clear the field. Figure 5-34: Administration Tab - Diagnostics 29 Chapter 5: Configuring the Wireless-G Broadband Router The Administration Tab - Log Wireless-G Broadband Router with SRX Traceroute Test. To test the performance of a connect, enter the address of the PC whose connection you wish to test and click the Start Test button. The test field will show if the test was successful. To stop the test, click the Abort Test button. Click the Clear button to clear the screen. Change these settings as described here and click the Save Settings button to apply your changes or Cancel Changes to cancel your changes. The Administration Tab - Factory Defaults Click the Yes button to reset all configuration settings to their default values, and then click the Save Settings button. Any settings you have saved will be lost when the default settings are restored. This feature is disabled by default. Figure 5-35: Administration Tab - Factory Defaults The Administration Tab - Firmware Upgrade Firmware can be upgraded by clicking the Upgrade button after browsing for the firmware, which you can download from the Linksys website. Do not upgrade your firmware unless you are experiencing problems with the Router. For more information about upgrading firmware, refer to "Appendix C: Upgrading Firmware". Figure 5-36: Administration Tab - Firmware Upgrade firmware: the programming code that runs a networking device download: to receive a file transmitted over a network Chapter 5: Configuring the Wireless-G Broadband Router The Administration Tab - Factory Defaults 30 Wireless-G Broadband Router with SRX The Administration Tab - Config Management The Config Management screen allows you to backup the Router's settings and restore them later. Simply, click the Backup button and save the config file to your hard drive. When you wish to restore the config file, click the Browse button to locate the file and then click the Restore button. Figure 5-37: Administration Tab - Config Management The Status Tab - Router The Router screen on the Status Tab displays the Router's current status. Hardware Version. This shows the Router's model number. Firmware Version. This is the Router's current firmware version. Boot Version. This shows the Router's BIOS version. Current Time. This shows the time, as you set on the Setup Tab. MAC Address. This is the Router's MAC Address, as seen by your ISP. Figure 5-38: Status Tab - Router Local MAC Address. This is the MAC Address for the Router's LAN ports. System Up Time. This is the amount of time since the Router was first booted up. Connection Type. This shows the connection type you set on the Setup Tab. Connection settings then follow. Chapter 5: Configuring the Wireless-G Broadband Router The Administration Tab - Config Management isp: your internet provider mac address: the unique address that a manufacturer assigns to each networking device. 31 Wireless-G Broadband Router with SRX The Status Tab - Local Network The Local Network screen on the Status Tab displays the status of your network. MAC Address. This is the Router's MAC Address, as seen on your local, Ethernet network. IP Address. This shows the Router's IP Address, as it appears on your local, Ethernet network. Subnet Mask. When the Router is using a Subnet Mask, it is shown here. DHCP Server. If you are using the Router as a DHCP server, that will be displayed here. Start IP Address. For the range of IP Addresses used by devices on your local, Ethernet network, the beginning of that range is shown here. End IP Address. For the range of IP Addresses used by devices on your local, Ethernet network, the end of that range is shown here. DHCP Clients Table. Clicking this button will open a screen to show you which PCs are utilizing the Router as a DHCP server. You can delete PCs from that list, and sever their connections, by checking a Delete box and clicking the Delete button. subnet mask: an address code that determines the size of the network Figure 5-39: Status Tab - Local Network Chapter 5: Configuring the Wireless-G Broadband Router The Status Tab - Local Network 32 Wireless-G Broadband Router with SRX The Status Tab - Wireless The Wireless screen on the Status Tab displays the status of your wireless network. MAC Address. This is the Router's MAC Address, as seen on your local, wireless network. Mode. As selected from the Wireless tab, this will display the wireless mode (Mixed, G-Only, or Disabled) used by the network. SSID. As entered on the Wireless tab, this will display the wireless network name or SSID. Figure 5-40: Status Tab - Wireless Channel. As entered on the Wireless tab, this will display the channel on which your wireless network is broadcasting. Encryption Mode. As selected on the Security Tab, this will display what type of encryption the Router uses for security. encryption: encoding data transmitted in a network Chapter 5: Configuring the Wireless-G Broadband Router The Status Tab - Wireless 33 Wireless-G Broadband Router with SRX The Status Tab - System Performance The System Performance screen displays status information about network traffic for the Internet, wireless activities, and wired connectivity. System Performance Internet/Wireless Statistics for the network traffic on the Internet connection and wireless connectivity are shown in two separate columns. IP Address. The IP address of the Router's interface is displayed here. MAC Address. The MAC address of the Router's interface is shown here. Connection. The status of the connection is shown here. Packets Received. The number of packets received is displayed here. Packets Sent. The number of packets sent is displayed here. Bytes Received. The number of bytes received is shown here. Bytes Sent. The number of bytes sent is shown here. Error Packets Received. The number of error packets received is displayed here. Dropped Packets Received. The number of dropped packets received is displayed here. Figure 5-41: Status Tab - System Performance LAN Statistics for the network traffic on each of the four LAN ports are shown in four separate columns. IP Address. The IP address of the Router's interface is displayed here. MAC Address. The MAC address of the Router's interface is shown here. Connection. The status of the connection is shown here. Packets Received. The number of packets received is displayed here. Chapter 5: Configuring the Wireless-G Broadband Router The Status Tab - System Performance 34 Wireless-G Broadband Router with SRX Packets Sent. The number of packets sent is displayed here. Bytes Received. The number of bytes received is shown here. Bytes Sent. The number of bytes sent is shown here. Error Packets Received. The number of error packets received is displayed here. Dropped Packets Received. The number of dropped packets received is displayed here. Click the Refresh button to update the on-screen information. Help information is shown on the right-hand side of the screen. Chapter 5: Configuring the Wireless-G Broadband Router The Status Tab - System Performance 35 Wireless-G Broadband Router with SRX Appendix A: Troubleshooting This appendix consists of two parts: "Common Problems and Solutions" and "Frequently Asked Questions." Provided are possible solutions to problems that may occur during the installation and operation of the Router. Read the descriptions below to help you solve your problems. If you can't find an answer here, check the Linksys website at www.linksys.com. Common Problems and Solutions 1. I'm trying to access the Router's Web-based Utility, but I do not see the login screen. Instead, I see a screen saying, "404 Forbidden." If you are using Windows Explorer, perform the following steps until you see the Web-based Utility's login screen (Netscape Navigator will require similar steps): 1. Click File. Make sure Work Offline is NOT checked. 2. Press CTRL + F5. This is a hard refresh, which will force Windows Explorer to load new webpages, not cached ones. 3. Click Tools. Click Internet Options. Click the Security tab. Click the Default level button. Make sure the security level is Medium or lower. Then click the OK button. 2. I need to set a static IP address on a PC. You can assign a static IP address to a PC by performing the following steps: · For Windows 98SE and Me: 1. Click Start, Settings, and Control Panel. Double-click Network. 2. In The following network components are installed box, select the TCP/IP-> associated with your Ethernet adapter. If you only have one Ethernet adapter installed, you will only see one TCP/IP line with no association to an Ethernet adapter. Highlight it and click the Properties button. 3. In the TCP/IP properties window, select the IP address tab, and select Specify an IP address. Enter a unique IP address that is not used by any other computer on the network connected to the Router. Make sure that each IP address is unique for each PC or network device. 4. Click the Gateway tab, and in the New Gateway prompt, enter 192.168.1.1, which is the default IP address of the Router. Click the Add button to accept the entry. 5. Click the DNS tab, and make sure the DNS Enabled option is selected. Enter the Host and Domain names (e.g., John for Host and home for Domain). Enter the DNS entry provided by your ISP. If your ISP has not provided the DNS IP address, contact your ISP to get that information or go to its website for the information. 6. Click the OK button in the TCP/IP properties window, and click Close or the OK button for the Network window. 7. Restart the computer when asked. Appendix A: Troubleshooting Common Problems and Solutions 36 Wireless-G Broadband Router with SRX · For Windows 2000: 1. Click Start, Settings, and Control Panel. Double-click Network and Dial-Up Connections. 2. Right-click the Local Area Connection that is associated with the Ethernet adapter you are using, and select the Properties option. 3. In the Components checked are used by this connection box, highlight Internet Protocol (TCP/IP), and click the Properties button. Select Use the following IP address option. 4. Enter a unique IP address that is not used by any other computer on the network connected to the Router. 5. Enter the Subnet Mask, 255.255.255.0. 6. Enter the Default Gateway, 192.168.1.1 (Router's default IP address). 7. Toward the bottom of the window, select Use the following DNS server addresses, and enter the Preferred DNS server and Alternative DNS server (provided by your ISP). Contact your ISP or go on its website to find the information. 8. Click the OK button in the Internet Protocol (TCP/IP) Properties window, and click the OK button in the Local Area Connection Properties window. 9. Restart the computer if asked. · For Windows XP: The following instructions assume you are running Windows XP with the default interface. If you are using the Classic interface (where the icons and menus look like previous Windows versions), please follow the instructions for Windows 2000. 1. Click Start and Control Panel. 2. Click the Network and Internet Connections icon and then the Network Connections icon. 3. Right-click the Local Area Connection that is associated with the Ethernet adapter you are using, and select the Properties option. 4. In the This connection uses the following items box, highlight Internet Protocol (TCP/IP). Click the Properties button. 5. Enter a unique IP address that is not used by any other computer on the network connected to the Router. 6. Enter the Subnet Mask, 255.255.255.0. 7. Enter the Default Gateway, 192.168.1.1 (Router's default IP address). 8. Toward the bottom of the window, select Use the following DNS server addresses, and enter the Preferred DNS server and Alternative DNS server (provided by your ISP). Contact your ISP or go on its website to find the information. 9. Click the OK button in the Internet Protocol (TCP/IP) Properties window. Click the OK button in the Local Area Connection Properties window. 3. I want to test my Internet connection. A Check your TCP/IP settings. For Windows 98SE, Me, 2000, and XP: Appendix A: Troubleshooting Common Problems and Solutions 37 Wireless-G Broadband Router with SRX · Refer to "Appendix D: Windows Help" for details. Make sure Obtain IP address automatically is selected in the settings. B Open a command prompt. For Windows 98SE and Me: · Click Start and Run. In the Open field, type command. Press the Enter key or click the OK button. For Windows 2000 and XP: · Click Start and Run. In the Open field, type cmd. Press the Enter key or click the OK button. In the command prompt, type ping 192.168.1.1 and press the Enter key. · If you get a reply, the computer is communicating with the Router. · If you do NOT get a reply, please check the cable, and make sure Obtain an IP address automatically is selected in the TCP/IP settings for your Ethernet adapter. C In the command prompt, type ping followed by your Internet or WAN IP address and press the Enter key. The Internet or WAN IP Address can be found on the Status screen of the Router's web-based utility. For example, if your Internet or WAN IP address is 1.2.3.4, you would enter ping 1.2.3.4 and press the Enter key. · If you get a reply, the computer is connected to the Router. · If you do NOT get a reply, try the ping command from a different computer to verify that your original computer is not the cause of the problem. D In the command prompt, type ping www.yahoo.com and press the Enter key. · If you get a reply, the computer is connected to the Internet. If you cannot open a webpage, try the ping command from a different computer to verify that your original computer is not the cause of the problem. · If you do NOT get a reply, there may be a problem with the connection. Try the ping command from a different computer to verify that your original computer is not the cause of the problem. 5. I am not getting an IP address on the Internet with my Internet connection. · Refer to "Problem #2, I want to test my Internet connection" to verify that you have connectivity. · If you need to register the MAC address of your Ethernet adapter with your ISP, please see "Appendix E: Finding the MAC address and IP Address for Your Ethernet Adapter." If you need to clone the MAC address of your Ethernet adapter onto the Router, see the System section of "Chapter 5: Configuring the Wireless-G Broadband Router" for details. · Make sure you are using the right Internet connection settings. Contact your ISP to see if your Internet connection type is DHCP, Static IP Address, or PPPoE (commonly used by DSL consumers). Please refer to the Setup section of "Chapter 5: Configuring the Wireless-G Broadband Router" for details on Internet connection settings. · Make sure you have the right cable. Check to see if the Internet column has a solidly lit Link/Act LED. · Make sure the cable connecting from your cable or DSL modem is connected to the Router's Internet port. Verify that the Status page of the Router's web-based utility shows a valid IP address from your ISP. · Turn off the computer, Router, and cable/DSL modem. Wait 30 seconds, and then turn on the Router, cable/DSL modem, and computer. Check the Status tab of the Router's web-based utility to see if you get an IP address. Appendix A: Troubleshooting Common Problems and Solutions 38 Wireless-G Broadband Router with SRX 6. I am not able to access the Setup page of the Router's web-based utility. · Refer to "Problem #2, I want to test my Internet connection" to verify that your computer is properly connected to the Router. · Refer to "Appendix E: Finding the MAC Address and IP address for Your Ethernet Adapter" to verify that your computer has an IP Address, Subnet Mask, Gateway, and DNS. · Set a static IP address on your system; refer to "Problem #1: I need to set a static IP address." · Refer to "Problem #10: I need to remove the proxy settings or the dial-up pop-up window (for PPPoE users)." 7. I need to set up a server behind my Router and make it available to the public. To use a server like a web, ftp, or mail server, you need to know the respective port numbers they are using. For example, port 80 (HTTP) is used for web; port 21 (FTP) is used for FTP, and port 25 (SMTP outgoing) and port 110 (POP3 incoming) are used for the mail server. You can get more information by viewing the documentation provided with the server you installed. Follow these steps to set up port forwarding through the Router's web-based utility. We will be setting up web, ftp, and mail servers. 1. Access the Router's web-based utility by going to http://192.168.1.1 or the IP address of the Router. Go to the Applications & Gaming => Port Forwarding tab. 2. Enter any name you want to use for the Customized Application. 3. Enter the External Port range of the service you are using. For example, if you have a web server, you would enter the range 80 to 80. 4. Check the protocol you will be using, TCP and/or UDP. 5. Enter the IP address of the PC or network device that you want the port server to go to. For example, if the web server's Ethernet adapter IP address is 192.168.1.100, you would enter 100 in the field provided. Check "Appendix E: Finding the MAC Address and IP Address for Your Ethernet Adapter" for details on getting an IP address. 6. Check the Enable option for the port services you want to use. Consider the example below: Application Web server FTP server SMTP (outgoing) POP3 (incoming) Start and End 80 to 80 21 to 21 25 to 25 110 to 110 Protocol Both TCP Both Both IP Address 192.168.1.100 192.168.1.101 192.168.1.102 192.168.1.102 Enabled X X X X When you have completed the configuration, click the Save Settings button. Appendix A: Troubleshooting Common Problems and Solutions 39 Wireless-G Broadband Router with SRX 8. I need to set up online game hosting or use other Internet applications. If you want to play online games or use Internet applications, most will work without doing any port forwarding or DMZ hosting. There may be cases when you want to host an online game or Internet application. This would require you to set up the Router to deliver incoming packets or data to a specific computer. This also applies to the Internet applications you are using. The best way to get the information on what port services to use is to go to the website of the online game or application you want to use. Follow these steps to set up online game hosting or use a certain Internet application: 1. Access the Router's web interface by going to http://192.168.1.1 or the IP address of the Router. Go to the Applications & Gaming => Port Forwarding tab. 2. Enter any name you want to use for the Customized Application. 3. Enter the External Port range of the service you are using. For example, if you want to host Unreal Tournament (UT), you would enter the range 7777 to 27900. 4. Check the protocol you will be using, TCP and/or UDP. 5. Enter the IP address of the PC or network device that you want the port server to go to. For example, if the web server's Ethernet adapter IP address is 192.168.1.100, you would enter 100 in the field provided. Check "Appendix E: Finding the MAC Address and IP Address for Your Ethernet Adapter" for details on getting an IP address. 6. Check the Enable option for the port services you want to use. Consider the example below: Application UT Halflife PC Anywhere VPN IPSEC Start and End 7777 to 27900 27015 to 27015 5631 to 5631 500 to 500 Protocol Both Both UDP UDP IP Address 192.168.1.100 192.168.1.105 192.168.1.102 192.168.1.100 Enabled X X X X When you have completed the configuration, click the Save Settings button. 9. I can't get the Internet game, server, or application to work. If you are having difficulties getting any Internet game, server, or application to function properly, consider exposing one PC to the Internet using DeMilitarized Zone (DMZ) hosting. This option is available when an application requires too many ports or when you are not sure which port services to use. Make sure you disable all the forwarding entries if you want to successfully use DMZ hosting, since forwarding has priority over DMZ hosting. (In other words, data that enters the Router will be checked first by the forwarding settings. If the port number that the data enters from does not have port forwarding, then the Router will send the data to whichever PC or network device you set for DMZ hosting.) Appendix A: Troubleshooting Common Problems and Solutions 40 Wireless-G Broadband Router with SRX Follow these steps to set DMZ hosting: 1. Access the Router's web-based utility by going to http://192.168.1.1 or the IP address of the Router. Go to the Applications & Gaming => Port Forwarding tab. 2. Disable or remove the entries you have entered for forwarding. Keep this information in case you want to use it at a later time. 3. Go to the Applications & Gaming => DMZ tab. 4. Select Enable next to DMZ. In the DMZ Host IP Address field, enter the IP address of the computer you want exposed to the Internet. This will bypass the NAT technology for that computer. Please refer to "Appendix E: Finding the MAC Address and IP Address for Your Ethernet Adapter" for details on getting an IP address. 5. Once completed with the configuration, click the Save Settings button. 10. I forgot my password, or the password prompt always appears when I am saving settings to the Router. Reset the Router to factory default by pressing the Reset button for 10 seconds and then releasing it. If you are still getting prompted for a password when saving settings, then perform the following steps: 1. Access the Router's web-based utility by going to http://192.168.1.1 or the IP address of the Router. Enter the default password admin, and click the Administrations => Management tab. 2. Enter a different password in the Router Password field, and enter the same password in the second field to confirm the password. 3. Click the Save Settings button. 11. I am a PPPoE user, and I need to remove the proxy settings or the dial-up pop-up window. If you have proxy settings, you need to disable these on your computer. Because the Router is the gateway for the Internet connection, the computer does not need any proxy settings to gain access. Please follow these directions to verify that you do not have any proxy settings and that the browser you use is set to connect directly to the LAN. · For Microsoft Internet Explorer 5.0 or higher: 1. Click Start, Settings, and Control Panel. Double-click Internet Options. 2. Click the Connections tab. 3. Click the LAN settings button and remove anything that is checked. 4. Click the OK button to go back to the previous screen. 5. Click the option Never dial a connection. This will remove any dial-up pop-ups for PPPoE users. · For Netscape 4.7 or higher: 1. Start Netscape Navigator, and click Edit, Preferences, Advanced, and Proxies. 2. Make sure you have Direct connection to the Internet selected on this screen. 3. Close all the windows to finish. Appendix A: Troubleshooting Common Problems and Solutions 41 Wireless-G Broadband Router with SRX 12. To start over, I need to set the Router to factory default. Hold the Reset button for 10 seconds and then release it. This will return the password, forwarding, and other settings on the Router to the factory default settings. In other words, the Router will revert to its original factory configuration. 13. My power LED will not stop flashing. Press and hold the reset button for five seconds. If this does not work, your firmware may be corrupted. To upgrade the firmware, follow the steps in "Appendix C: Upgrading Firmware." 14. I need to upgrade the firmware. In order to upgrade the firmware with the latest features, you need to go to the Linksys website and download the latest firmware at www.linksys.com. Follow these steps: 1. Go to the Linksys website at http://www.linksys.com and download the latest firmware. 2. To upgrade the firmware, follow the steps in "Appendix C: Upgrading Firmware." 15. The firmware upgrade failed, and/or the Power LED is flashing. The upgrade could have failed for a number of reasons. Follow these steps to upgrade the firmware and/or make the Power LED stop flashing: · If the firmware upgrade failed, use the TFTP program (it was downloaded along with the firmware). Open the pdf that was downloaded along with the firmware and TFTP program, and follow the pdf's instructions. · Set a static IP address on the PC; refer to "Problem #1, I need to set a static IP address." Use the following IP address settings for the computer you are using: IP Address: 192.168.1.50 Subnet Mask: 255.255.255.0 Gateway: 192.168.1.1 · Perform the upgrade using the TFTP program or the Administration tab of the Router's web-based utility. 16. My DSL service's PPPoE is always disconnecting. PPPoE is not actually a dedicated or always-on connection. The DSL ISP can disconnect the service after a period of inactivity, just like a normal phone dial-up connection to the Internet. · There is a setup option to "keep alive" the connection. This may not always work, so you may need to reestablish connection periodically. 1. To connect to the Router, go to the web browser, and enter http://192.168.1.1 or the IP address of the Router. 2. Enter the password, if asked. (The default password is admin.) 3. On the Setup screen, select the option Keep Alive, and set the Redial Period option at 20 (seconds). 4. Click the Save Settings button. 5. Click the Status tab, and click the Connect button. Appendix A: Troubleshooting Common Problems and Solutions 42 Wireless-G Broadband Router with SRX 6. You may see the login status display as Connecting. Press the F5 key to refresh the screen, until you see the login status display as Connected. · Click the Save Settings button to continue. · If the connection is lost again, follow steps 1- 6 to re-establish connection. 17. I can't access my e-mail, web or I am getting corrupted data from the Internet. The Maximum Transmission Unit (MTU) setting may need to be adjusted. By default, the MTU is set at 1500. For most DSL users, it is strongly recommended to use MTU 1492. · If you are having some difficulties, perform the following steps: 1. To connect to the Router, go to the web browser, and enter http://192.168.1.1 or the IP address of the Router. 2. Enter the password, if asked. (The default password is admin.) 3. Look for the MTU option, and select Manual. In the Size field, enter 1492. 4. Click the Save Settings button to continue. · If your difficulties continue, change the Size to different values. Try this list of values, one value at a time, in this order, until your problem is solved: 1462 1400 1362 1300 18. When I enter a URL or IP address, I get a time-out error or am prompted to retry. · Check if other PCs work. If they do, ensure that your workstation's IP settings are correct (IP Address, Subnet Mask, Default Gateway, and DNS). Restart the computer that is having a problem. · If the PCs are configured correctly, but still not working, check the Router. Ensure that it is connected and powered on. Connect to it and check its settings. (If you cannot connect to it, check the LAN and power connections.) · If the Router is configured correctly, check your Internet connection (DSL/cable modem, etc.) to see if it is working correctly. You can remove the Router to verify a direct connection. · Manually configure the TCP/IP settings with a DNS address provided by your ISP. · Make sure that your browser is set to connect directly and that any dial-up is disabled. For Internet Explorer, click Tools, Internet Options, and then the Connection tab. Make sure that Internet Explorer is set to Never dial a connection. For Netscape Navigator, click Edit, Preferences, Advanced, and Proxy. Make sure that Netscape Navigator is set to Direct connection to the Internet. 19. I cannot connect to the Internet. · For Cable users - Click on the Status tab and make sure you have the Internet IP address is not 0.0.0.0. If it is, click the DHCP Renew button, and wait a few minutes for the router to try and contact your service provider. After the router successfully obtains an IP address, restart your computer. Appendix A: Troubleshooting Common Problems and Solutions 43 Wireless-G Broadband Router with SRX · For DSL users - 1) Make sure you have typed in your user name and password correctly. Some service providers use your full email address as the user name. If you are sure you have enter the right user name, try using username@[isp.com], where isp.com is the name of your service provider. 2) Power down your DSL Modem, your PC, and your router. Then power on your DSL Modem, wait for the LEDs on the DSL modem to stop flashing. Power on your router and wait for the power LED to stop flashing. Finally, power on your PC. 20. My wireless-G speed seems to be slow. · Reposition the antenna. · Reposition the router so that it's higher up, above your other networking gear. · Change CTS Protection to Disable under advanced wireless settings. 21. I do not see a speed improvement while surfing wirelessly with my SRX equipment. · Your Internet connection is usually much slower than your wireless network with SRX equipment. This equipment will not affect the speed of your Internet connection. · You will see the most improvements in transferring or streaming files from one computer to another in your network. · Your network speed will slow down if you have mixed 802.11g and SRX clients. For maximum performance, use all SRX devices on your network. 22. How do I turn on SRX on my router? SRX is automatically turned on in Mixed, G-Only and SRX mode. There's nothing you need to do to utilize this feature. Appendix A: Troubleshooting Common Problems and Solutions 44