User manual ASUS RX3141

RX3141 User's Manual Revision 1.01 Oct. 21, 2004 Table of Contents Introduction ..............................................1 1 1.1 1.2 1.3 Features................................................................................................................1 System Requirements..........................................................................................1 Using this Document ............................................................................................2 1.3.1 1.3.2 1.3.3 Notational conventions...............................................................................2 Typographical conventions ........................................................................2 Special messages ......................................................................................2 2 Getting to Know RX3141 .........................3 2.1 2.2 2.3 Parts List ...............................................................................................................3 Hardware Features...............................................................................................3 Software Features ................................................................................................3 2.3.1 2.3.2 NAT Features .............................................................................................3 Firewall Features........................................................................................4 Stateful Packet Inspection .............................................................4 Packet Filtering ­ ACL (Access Control List)................................4 Defense against DoS Attacks........................................................4 Application Level Gateway (ALG) .................................................5 Log..................................................................................................5 2.3.2.1 2.3.2.2 2.3.2.3 2.4.1.1 2.4.1.2 2.4 Finding Your Way Around ....................................................................................6 2.4.1 2.4.2 2.4.3 Front Panel .................................................................................................6 Rear Panel..................................................................................................7 Bottom View ...............................................................................................8 2.5 Placement Options ...............................................................................................9 2.5.1 2.5.2 2.5.3 Desktop Placement....................................................................................9 Magnet Mount Instructions.........................................................................9 Wall Mount Instructions:.............................................................................9 3 Quick Start Guide...................................11 3.1 Part 1 -- Connecting the Hardware...................................................................11 3.1.1 3.1.2 3.1.3 3.1.4 3.2 Step 1. Connect an ADSL or a cable modem.........................................11 Step 2. Connect computers or a Network. ..............................................11 Step 3. Attach the AC adapter. ................................................................12 Step 4. Power on RX3141, the ADSL or cable modem and power up your computers.........................................................................................12 Part 2 -- Configuring Your Computers..............................................................13 ii 3.2.1 3.2.2 3.2.3 3.2.4 3.2.5 3.2.6 3.3 Before you begin ......................................................................................13 Windows® XP PCs: .................................................................................13 Windows® 2000 PCs:..............................................................................13 Windows® 95, 98, and Me PCs ..............................................................14 Windows® NT 4.0 workstations:..............................................................15 Assigning static IP addresses to your PCs .............................................15 Part 3 -- Quick Configuration of the RX3141....................................................16 3.3.1 3.3.2 3.3.3 Setting Up the RX3141 ............................................................................16 Testing Your Setup ..................................................................................17 Default Router Settings............................................................................18 4 Using the Configuration Manager ..........19 4.1 4.2 Log into the Configuration Manager...................................................................19 Functional Layout ...............................................................................................20 4.2.1 4.2.2 4.3 Menu Navigation ......................................................................................20 Commonly Used Buttons and Icons........................................................21 Overview of System Configuration.....................................................................22 5 Router Connection Setup.......................23 5.1 LAN Configuration ..............................................................................................23 5.1.1 5.1.2 5.1.3 5.2 LAN IP Address........................................................................................23 LAN Configuration Parameters................................................................23 Configuring the LAN IP Address..............................................................24 WAN Configuration.............................................................................................25 5.2.1 5.2.2 WAN Connection Mode ...........................................................................25 PPPoE ......................................................................................................26 WAN PPPoE Configuration Parameters.....................................27 Configuring PPPoE for WAN.......................................................28 Configuring PPPoE Multi-session for WAN ................................28 5.2.2.1 5.2.2.2 5.2.2.3 5.2.3 PPPoE Unnumbered................................................................................31 WAN PPPoE Unnumbered Configuration Parameters ..............32 Configuring PPPoE Unnumbered for WAN ................................33 5.2.3.1 5.2.3.2 5.2.4 Dynamic IP ...............................................................................................33 Configuring Dynamic IP for WAN................................................33 5.2.4.1 5.2.5 Static IP.....................................................................................................34 WAN Static IP Configuration Parameters ...................................34 Configuring Static IP for WAN .....................................................34 5.2.5.1 5.2.5.2 iii 6 DHCP Server Configuration...................35 6.1 DHCP (Dynamic Host Control Protocol)............................................................35 6.1.1 6.1.2 6.1.3 6.1.4 What is DHCP? ........................................................................................35 Why use DHCP?......................................................................................35 Configuring DHCP Server........................................................................35 Viewing Current DHCP Address Assignments .......................................37 7 Configuring Static Routes ......................39 7.1 Overview of IP Routes........................................................................................39 7.1.1 7.2 Do I need to define static routes? ............................................................39 Static Route ........................................................................................................40 7.2.1 7.2.2 7.2.3 7.2.4 Static Route Configuration Parameters...................................................40 Adding Static Routes................................................................................41 Deleting Static Routes..............................................................................42 Viewing the Static Routing Table.............................................................42 8 9 Configuring DDNS .................................43 8.1 8.2 DDNS Configuration Parameters.......................................................................44 Configuring HTTP DDNS Client.........................................................................45 Configuring Firewall/NAT Settings.........47 9.1 Firewall Overview ...............................................................................................47 9.1.1 9.1.2 9.1.3 Stateful Packet Inspection .......................................................................47 DoS (Denial of Service) Protection..........................................................47 Firewall and Access Control List (ACL)...................................................47 Priority Order of ACL Rule...........................................................47 ACL Rule and Connection State Tracking..................................48 9.1.3.1 9.1.3.2 9.1.4 9.2 Default ACL Rules....................................................................................48 Router Security Settings.....................................................................................49 9.2.1 9.2.2 Basic Router Security Configuration Parameters ...................................49 DoS Configuration....................................................................................49 DoS Protection Configuration Parameters..................................50 Configuring DoS Settings ............................................................51 9.2.2.1 9.2.2.2 9.3 ACL Rule Configuration Parameters .................................................................52 9.3.1 ACL Rule Configuration Parameters.......................................................52 9.4 Configuring Inbound ACL Rules ........................................................................55 9.4.1 Add Inbound ACL Rules ..........................................................................55 iv 9.4.2 9.4.3 9.4.4 9.5 Figure 9.4. Sample Inbound ACL List TableModify Inbound ACL Rules ..................................................................................................................56 Delete Inbound ACL Rules ......................................................................56 Display Inbound ACL Rules.....................................................................57 Configuring Outbound ACL Rules .....................................................................57 9.5.1 9.5.2 9.5.3 9.5.4 Add an Outbound ACL Rule ....................................................................57 Modify Outbound ACL Rules ...................................................................58 Delete Outbound ACL Rules ...................................................................59 Display Outbound ACL Rules..................................................................59 Self-Access ACL) ......59 9.6 Configuring Self-Access ACL Rules ­ (Router Setup 9.6.1 9.6.2 9.6.3 9.6.4 Add a Self-Access Rule ...........................................................................60 Modify a Self-Access Rule.......................................................................60 Delete a Self-Access Rule .......................................................................61 View Configured Self-Access Rules........................................................61 Log)................................................................61 9.7 Firewall Log ­ (Router Setup 9.7.1 Log Format ...............................................................................................62 10 Virtual Sever and Special Application....63 10.1 NAT Overview.....................................................................................................63 NAPT (Network Address and Port Translation) or PAT (Port Address Translation) ................................................................................................63 Reverse NAPT / Virtual Server................................................................64 10.1.1 10.1.2 10.2 Configure Virtual Server .....................................................................................64 Virtual Server Configuration Parameters.................................................64 Virtual Server Example ............................................................................66 Special Application Configuration Parameters........................................67 Special Application Example ...................................................................68 10.2.1 10.2.2 10.2.3 10.2.4 11 System Management.............................70 11.1 11.2 11.3 Login Password and System-Wide Settings .....................................................70 Viewing System Information...............................................................................72 Setup Date and Time .........................................................................................73 View the System Date and Time .............................................................74 11.3.1 11.4 Reset to Factory Default Settings ......................................................................74 Reset to Factory Default Settings using GUI ..........................................74 Reset to Factory Default Settings using the Reset Button .....................75 11.4.1 11.4.2 11.5 11.6 Firmware Upgrade..............................................................................................75 System Reboot ...................................................................................................78 v 11.7 . System Configuration Management ................................................................79 Backup System Configuration .................................................................79 Restore System Configuration.................................................................81 11.7.1 11.7.2 12 IP Addresses, Network Masks, and Subnets ..................................................83 12.1 IP Addresses.......................................................................................................83 Structure of an IP address .......................................................................83 12.1.1 12.2 12.3 Network classes..................................................................................................84 Subnet masks .....................................................................................................85 13 Troubleshooting .....................................87 13.1 Diagnosing Problem using IP Utilities................................................................88 ping ...........................................................................................................88 nslookup ...................................................................................................89 13.1.1 13.1.2 14 Index ......................................................91 vi List of Figures Figure 2.1. Front Panel LEDs...................................................................................................................................6 Figure 2.2. Rear Panel Connectors .........................................................................................................................7 Figure 3.1. Overview of Hardware Connections .................................................................................................. 12 Figure 3.2. Login Screen ....................................................................................................................................... 16 Figure 3.3. System Status Page ........................................................................................................................... 17 Figure 4.1. Configuration Manager Login Screen ................................................................................................ 19 Figure 4.2. Typical Configuration Manager Page................................................................................................. 20 Figure 4.3. System Information Page ................................................................................................................... 22 Figure 5.1. Router Connection Setup Configuration ­ LAN Configuration.......................................................... 24 Figure 5.2. Network Setup Configuration Page ­ WAN Configuration................................................................ 25 Figure 5.3. WAN ­ PPPoE Configuration............................................................................................................. 26 Figure 5.4. WAN ­ PPPoE Multi-session Example.............................................................................................. 28 Figure 5.5. WAN ­ PPPoE0 Settings ................................................................................................................... 29 Figure 5.6. WAN ­ PPPoE1 Settings ................................................................................................................... 29 Figure 5.7. WAN ­ First ACL Rule Settings (using network address/subnet mask) for Forwarding Packets to PPPOE1 Session........................................................................................................................................... 29 Figure 5.8. WAN ­ Second ACL Rule Settings (using domain name) for Forwarding Packets to PPPOE1 Session........................................................................................................................................................... 29 Figure 5.9. WAN ­ Outbound ACL Rule Settings for PPPoE Multi-session Example........................................ 30 Figure 5.10. WAN ­ Default Outbound ACL Rule for PPPoE Multi-session Example ....................................... 30 Figure 5.11. WAN ­ PPPoE Unnumbered Configuration .................................................................................... 31 Figure 5.12. WAN ­ Dynamic IP (DHCP client) Configuration ............................................................................ 33 Figure 5.13. WAN ­ Static IP Configuration ......................................................................................................... 34 Figure 6.1. DHCP Server Configuration Page...................................................................................................... 36 Figure 6.2. DHCP Lease Table............................................................................................................................. 37 Figure 7.1. Routing Configuration Page .............................................................................................................. 40 Figure 7.2. Static Route Configuration................................................................................................................. 41 Figure 7.3. Sample Routing Table ....................................................................................................................... 42 Figure 8.1. Network Diagram for HTTP DDNS .................................................................................................... 43 Figure 8.2. HTTP DDNS Configuration Page....................................................................................................... 45 Figure 9.1. Router Security Configuration Page................................................................................................... 51 Figure 9.2. Inbound ACL Configuration Page ...................................................................................................... 55 Figure 9.3. Inbound ACL Configuration Example................................................................................................. 56 Figure 9.4. Sample Inbound ACL List Table................................................................................................. 56 Figure 9.5. Outbound ACL Configuration Page ................................................................................................... 57 Figure 9.6. Outbound ACL Configuration Example.............................................................................................. 58 vii Figure 9.7. Sample Outbound ACL List Table...................................................................................................... 58 Figure 9.8. Self-Access ACL Configuration Page ................................................................................................ 60 Figure 9.9. Self-Access ACL Configuration Example .......................................................................................... 60 Figure 9.10. Existing Self-Access ACL Rules ...................................................................................................... 61 Figure 9.11 Sample Firewall Log .......................................................................................................................... 62 Figure 10.1 NAPT ­ Map Any Internal PCs to a Single Global IP Address ........................................................ 63 Figure 10.2 Reverse NAPT ­ Relayed Incoming Packets to the Internal Host Base on the Protocol, Port Number or IP Address ................................................................................................................................... 64 Figure 10.3. Virtual Server Example..................................................................................................................... 66 Figure 10.4. Virtual Server Example ­ Inbound ACL Rule........................................................................... 67 Figure 10.5. Special Application Configuration Page........................................................................................... 68 Figure 10.6. Special Application Example ­ Outbound ACL Rule....................................................................... 69 Figure 10.7. Outbound ACL Rule Table ............................................................................................................... 69 Figure 11.1. System Administration Configuration Page ..................................................................................... 70 Figure 11.2. System Status Page ......................................................................................................................... 72 Figure 11.3. Date and Time Configuration Page.................................................................................................. 73 Figure 11.4. Factory Reset Page .......................................................................................................................... 74 Figure 11.5. Factory Reset Confirmation.............................................................................................................. 74 Figure 11.6. Factory Reset Count Down Timer.................................................................................................... 75 Figure 11.7. Firmware Upgrade Page .................................................................................................................. 75 Figure 11.8. File Manager ..................................................................................................................................... 76 Figure 11.9. Firmware Upgrade Confirmation...................................................................................................... 76 Figure 11.10. Firmware Upgrade Status .............................................................................................................. 76 Figure 11.11. Firmware Upgrade Count Down Timer.......................................................................................... 77 Figure 11.12. System Reboot Page...................................................................................................................... 78 Figure 11.13. System Reboot Confirmation ......................................................................................................... 78 Figure 11.14. System Reboot Countdown Timer................................................................................................. 78 Figure 11.15. System Configuration Backup Page .............................................................................................. 79 Figure 11.16. System Configuration Backup Page ­ File Download Dialog....................................................... 79 Figure 11.17. System Configuration Backup Page ­ Save As Dialog................................................................. 80 Figure 11.18. System Configuration Backup Status ............................................................................................ 80 Figure 11.19. System Configuration Restore Page ............................................................................................. 81 Figure 11.20. System Configuration Restore Page ­ Choose File Dialog .......................................................... 81 Figure 11.21. System Configuration Restore Status............................................................................................ 82 Figure 13.1. Using the ping Utility ......................................................................................................................... 89 Figure 13.2. Using the nslookup Utility ................................................................................................................. 90 viii List of Tables Table 2.1. DoS Attacks.............................................................................................................................................5 Table 2.2. Front Panel Label and LEDs ..................................................................................................................6 Table 2.3. Rear Panel Labels and LEDs .................................................................................................................7 Table 3.1. LED Indicators...................................................................................................................................... 12 Table 3.2. Default Settings Summary................................................................................................................... 18 Table 4.1. Description of Commonly Used Buttons and Icons ............................................................................ 21 Table 5.1. LAN Configuration Parameters............................................................................................................ 23 Table 5.2. WAN PPPoE Configuration Parameters............................................................................................. 27 Table 5.3. WAN PPPoE Unnumbered Configuration Parameters ...................................................................... 32 Table 5.4. WAN Static IP Configuration Parameters ........................................................................................... 34 Table 6.1. DHCP Configuration Parameters ........................................................................................................ 36 Table 7.1. Static Route Configuration Parameters............................................................................................... 40 Table 8.1. DDNS Configuration Parameters ........................................................................................................ 44 Table 9.1. Firewall Basic Configuration Parameters ............................................................................................ 49 Table 9.2. DoS Attack Definition ........................................................................................................................... 50 Table 9.3. ACL Rule Configuration Parameters................................................................................................... 52 Table 10.1. Virtual Server Configuration Parameters .......................................................................................... 65 Table 10.2. Port Numbers for Popular Applications ............................................................................................. 65 Table 10.3. Virtual Server Configuration Parameters .......................................................................................... 67 Table 10.4. Port Numbers for Popular Applications ............................................................................................. 68 Table 12.1. IP Address Structure.......................................................................................................................... 83 ix RX3141 User's Manual Chapter 1. Introduction 1 1.1 Introduction Congratulations on becoming the owner of RX3141. Your LAN (local area network) will now be able to access the Internet using your high-speed broadband connection such as those with ADSL or cable modem. This User Manual will show you how to set up the RX3141, and how to customize its configuration to get the most out of this product. Features LAN: 4-port Gigabit switch, jumbo frame supports up to 9Kbyte. WAN: 10/100Base-T Ethernet provides Internet access for all computers on your LAN Firewall & NAT (Network Address Translation) functions provide secure Internet access for your LAN Automatic network address assignment through DHCP Server Services including IP route, DNS and DDNS configuration Configuration program accessible via a web browser, such as Microsoft Internet Explorer 6.0 or newer. 1.2 System Requirements ADSL or cable modem and the corresponding service up and running, with at least one public Internet address assigned to your WAN One or more computers each containing an Ethernet 10Base-T or 100Base-T or 1000Base-T network interface card (NIC) (Optional) An Ethernet hub/switch, if you want to connect the router to more than four computers on an Ethernet network. For system configuration using the web-based GUI: web browser such as Microsoft IE 6.0 or newer. In order to use the RX3141 for Internet access, you must have the following: Chapter 1. Introduction RX3141 User's Manual 1.3 1.3.1 Using this Document Notational conventions Acronyms are defined the first time they appear in the text. For brevity, RX3141 is sometimes referred to as the "router" or the "gateway". The terms LAN and network are used interchangeably to refer to a group of Ethernet-connected computers at one site. Sequence of mouse actions is denoted by the " " character. For instance, Router Setup Connection means double click the Router Setup menu and then click the Connection submenu. 1.3.2 Typographical conventions Boldface type text is used for items you select from menus and drop-down lists, and text strings you type when prompted by the program. 1.3.3 Special messages This document uses the following icons to call your attention to specific instructions or explanations. Provides clarification or non-essential information on the current topic. Note Definition Explains terms or acronyms that may be unfamiliar to many readers. These terms are also included in the Glossary. Provides messages of high importance, including messages relating to personal safety or system integrity. WARNING 2 RX3141 User's Manual Chapter 2. Getting to Know 2 2.1 Getting to Know RX3141 Parts List The System unit, RX3141 AC Adapter User Manual Compact Disk of Multi-language Quick installation Guide In addition to this document, RX3141 should come with the following: 2.2 Hardware Features LAN · · · 4-port Gigabit switch Auto speed negotiation 9KB jumbo frame support · 4K MAC address table w/ auto learning and aging WAN · · 10/100M Ethernet Auto MDI/MDIX 2.3 2.3.1 Software Features NAT Features RX3141 provides NAT to share a single high-speed Internet connection and to save the cost of multiple connections required for the hosts on the LAN segments connected to it. This feature conceals network address and prevents them from becoming public. It maps unregistered IP address of hosts connected to the LAN with valid ones for Internet access. RX3141 also provides reverse NAT capability, which enables users to host various services such as e-mail servers, web servers, etc. The NAT rules drive the translation mechanism. The following types of NAT are supported by RX3141. NAPT (Network Address and Port Translation) ­ Also called IP Masquerading or ENAT (Enhanced NAT). Maps many internal hosts to only one globally valid IP address. The mapping usually contains a pool of network ports to be used for translation. Every packet is translated with the globally valid IP address; the port number is translated with a free pool from the pool of network ports. Reverse NAPT ­ Also called inbound mapping, port mapping, or virtual server. Any packet coming to the router can be relayed to an internal host based on the protocol, port number and/or IP Address specified in the rule. This is useful when multiple services are hosted on different internal hosts. 3 Chapter 2. Getting to Know RX3141 User's Manual 2.3.2 Firewall Features The firewall as implemented in RX3141 provides the following features to protect your network from being attacked and to prevent your network from being used as the springboard for attacks. Stateful Packet Inspection Packet Filtering (ACL) Defense against Denial of Service Attacks Log 2.3.2.1 Stateful Packet Inspection The RX3141 Firewall uses "stateful packet inspection" that extracts state-related information required for the security decision from the packet and maintains this information for evaluating subsequent connection attempts. It has awareness of application and creates dynamic sessions that allow dynamic connections so that no ports need to be opened other than the required ones. This provides a solution which is highly secure and that offers scalability and extensibility. 2.3.2.2 Packet Filtering ­ ACL (Access Control List) ACL rule is one of the basic building blocks for network security. Firewall monitors each individual packet, decodes the header information of inbound and outbound traffic and then either blocks the packet from passing or allows it to pass based on the contents of the source address, destination address, source port, destination port, and protocol defined in the ACL rules. ACL is a very appropriate measure for providing isolation of one subnet from another. It can be used as the first line of defense in the network to block inbound packets of specific types from ever reaching the protected network. The RX3141 Firewall's ACL methodology supports: Filtering based on destination and source IP address, port number and protocol Use of the wild card for composing filter rules Filter Rule priorities 2.3.2.3 Defense against DoS Attacks The RX3141 Firewall has an Attack Defense Engine that protects internal networks from known types of Internet attacks. It provides automatic protection from Denial of Service (DoS) attacks such as SYN flooding, IP smurfing, LAND, Ping of Death and all re-assembly attacks. For example, the RX3141 Firewall provides protection from "WinNuke", a widely used program to remotely crash unprotected Windows systems in the Internet. The RX3141 Firewall also provides protection from a variety of common Internet attacks such as IP Spoofing, Ping of Death, Land Attack, and Reassembly attacks. The type of attack protections/detections provided by the RX3141 is listed in Table 2.1. 4 RX3141 User's Manual Chapter 2 Getting to Know Table 2.1. DoS Attacks Type of Attack Re-assembly attacks ICMP Attacks Flooders Name of Attacks Bonk, Boink, Teardrop (New Tear), Overdrop, Opentear, Syndrop, Jolt, IP fragmentation overlap Ping of Death, Smurf, Twinge Logging only for ICMP Flooder, UDP Flooder, SYN Flooder Logging only for TCP SYN Scan Attack packets dropped: TCP XMAS Scan, TCP Null Scan, TCP Stealth Scan Echo-Chargen, Ascend Kill IP Spoofing, LAND, Targa, Winnuke Port Scans Protection with PF Rules Miscellaneous Attacks 2.4.1.1 Application Level Gateway (ALG) Applications such as FTP open connections dynamically based on the respective application parameter. To go through the firewall on the RX3141, packets pertaining to an application, require a corresponding allow rule. In the absence of such rules, the packets will be dropped by the RX3141 Firewall. As it is not feasible to create policies for numerous applications dynamically (at the same time without compromising security), intelligence in the form of Application Level Gateways (ALG), is built to parse packets for applications and open dynamic associations. The RX3141 NAT provides a number of ALGs for popular applications such as FTP, and Netmeeting. 2.4.1.2 Log Events in the network, that could be attempts to affect its security, are recorded in the RX3141 system log file. The log maintains a minimum log details such as, time of packet arrival, description of action taken by Firewall and reason for action. 5 Chapter 2. Getting to Know RX3141 User's Manual 2.4 2.4.1 Finding Your Way Around Front Panel 1 2 6 The front panel contains LED indicators that show the status of the unit. 3 4 5 Figure 2.1. Front Panel LEDs Table 2.2. Front Panel Label and LEDs LED Label 1 Color Green Status ON OFF Indication RX3141 is powered on RX3141 is powered off Identifies the LAN port LEDs. Status of each LAN port is indicated by 3 LEDs: STATUS, SPEED and DUPLEX. POWER 1­4 2 3 STATUS Green ON Blinking OFF Ethernet link is established and active Data is transmitted or received via the connection No Ethernet link Speed is 1000Mbps Speed is 100Mbps Speed is 10Mbps or no link is established. The LAN port is operating in full-duplex mode. The LAN port is operating in halfduplex mode and collision is occurring. The LAN port is operating in half duplex mode and no collision is detected. Identifies the WAN port LED Ethernet link is established and active. No Ethernet link is established. Speed is 100Mbps Green: Data is transmitted or received via the connection 4 SPEED Green Amber ON ON OFF ON Blinking 5 DUPLEX Amber OFF 6 3 WAN STATUS SPEED Green Green ON OFF ON Blinking 4 6 RX3141 User's Manual Chapter 2 Getting to Know LED Label Color Amber Status ON Blinking OFF Indication Speed is 10Mbps Data is transmitted or received via the connection No link is established. 5 DUPLEX Amber ON OFF The LAN port is operating in full-duplex mode. The LAN port is operating in half duplex mode and no collision is detected. 2.4.2 Rear Panel The rear panel contains the ports for the unit's data and power connections. 7 8 9 10 Figure 2.2. Rear Panel Connectors Table 2.3. Rear Panel Labels and LEDs Label 7 1­4 Indication LAN Ports: connects to your PC's Ethernet port, or to the uplink port on your LAN's hub/switch, using the Ethernet cable. WAN Port: connects to your WAN device, such as ADSL or cable modem. Reset Button 1. Reboots the device 2. Resets the system configuration to the factory defaults if pressed for more than 5 seconds. Power Input Jack: connects to the supplied AC adapter 8 WAN 9 RESET 10 POWER 7 Chapter 2. Getting to Know RX3141 User's Manual 2.4.3 Bottom View 11 11 11 12 12 11 11 Wall Mount Slots: You may use these slots to hang RX3141 on the wall to save space. Depending on your particular requirement by taking into account the location of the power outlet, power cord length, Ethernet cable length and etc., you can hang RX3141 in 4 different orientations: front panel up, rear panel up, left side up or right side up. 12 Magnets: The magnets allow you to place RX3141 on any metal surface to save space. 8 RX3141 User's Manual Chapter 2 Getting to Know 2.5 Placement Options Depending on your environment, you may choose one of the three supported placement options for RX3141 ­ desktop placement, magnet mount and wall mount. 2.5.1 Desktop Placement You may place RX3141 on any flat surface. The space-saving design of RX3141 occupies only a small area on your desk. 2.5.2 Magnet Mount Instructions Place RX3141 onto any metal surface that attracts magnet, such as most desktop computer housings, cabinets and etc. 2.5.3 Wall Mount Instructions: 1. Attach two screws on the wall, separated by 115mm if you want the front or rear panel facing upward, 76mm if you want left or right side facing upward. Make sure that the two screws are leveled. Note that there are four wall mount slots and you may choose any adjacent slots for wall mounting. 115mm or 76mm 2. Line up the wall mount slots with the screws and maneuver RX3141 so that both screws are inserted into the wall mount slots as indicated in the following figures. Screws Screws Wall mount slots Wall mount slots Maneuver the switch so that both screws are inserted into the wall mount slots. Line up the wall mount slots w/ both screws. 9