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NexComm Systems NR304G-4W User Manual

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  • Page 1 ’ ’ NexComm Systems Tel: +82-31-781-1862, Fax: +82-31-781-1863 E-mail: support@nexcomm.co.kr...
  • Page 2 Copyright © 2003 NexComm Systems Co., Inc. All Rights Reserved. This document contains information that is the property of NexComm Systems Co., Inc. All or part of this document may not be copied, reproduced, reduced to any electronic medium or...

  • Page 3: Table Of Contents

    NEXPEED NR304G-4W User’s Manual Contents PART I: NEXPEED NR304G-4W Introduction............4 Introduction ........................5 Specifications ........................7 Product Appearance......................9 PART II: Installing the Router.................. 11 Physical Environments ....................12 Checking in the Box.......................12 Mounting the router on a wall ..................13 Connecting Cables and Connectors................15 PART III: Configuring the Router ................18...
  • Page 4 NEXPEED NR304G-4W User’s Manual Contents(continued) Saving the Configuration....................51 Rebooting the system .....................52 PART IV: Configuring advanced Functions ............53 Configuring DHCP......................54 Configuring NAT......................57 Configuring IP Filter ......................63 Load Balancing and Line-Backup ..................66 Link-Multiplexing ......................70 PART V: System maintenance...................75 Accessing the router through Telnet................76 Configuring SNMP ......................77...

  • Page 5: Part I: Nexpeed Nr304G-4W Introduction

    NEXPEED NR304G-4W User’s Manual PART I: NEXPEED NR304G-4W Introduction Overview and Features Specification Product Appearance NexComm Systems, Inc. 4 PAGE...

  • Page 6: Introduction

    Introduction to the NEXPEED NR304G-4W router Overview The NR304G-4W router with SHDSL is a full-featured, stand-alone, router for connecting diverse local area networks(LANs) to the Internet and other remote networks. You will have a fast SHDSL(Symmetric High-speed Digital Subscriber Line) connection between your LAN and ISP’s network of high-speed digital facilities.
  • Page 7 NEXPEED NR304G-4W User’s Manual Features SHDSL is a technology based on the G.SHDSL(G.991.2) standard. NR304G-4W supports a packet-based network technology that allows high-speed transmission over twisted-pair copper wire between an Internet service provider central office and a customer site or on local loops created within a building.

  • Page 8: Specifications

    NEXPEED NR304G-4W User’s Manual Specifications NEXPEED NR304G-4W has one 10/100M Ethernet port, one SHDSL port and the console port. [Table 1-1] The NR304G-4W router specification Hardware Specifications DRAM : 4Mbyte Memory Flash Memory : 512Kbyte 1 port with RJ-45 DSL Port (for G.SHDSL) TC-PAM(G.991.2) line coding...
  • Page 9 NEXPEED NR304G-4W User’s Manual Power Requirements DC input voltage +5V, 2A F1 : KST 250 Vac, 2 A Fuses F2, F3 : F1250T , 250 V, 1.25 A Power Adapter Requirements This unit should be uses UL Listed AC/DC Adaptor, CCN: EPBU, EPBU7, QQGQ or QQGQ7 for USA or Canada only.

  • Page 10: Product Appearance

    NEXPEED NR304G-4W User’s Manual Product Appearance The front side for the NR304G-4W Router The NEXPEED NR304G-4W router has various LEDs in the front panel to provide port status information in real time. [Figure 1-1] The front side of the NR304G-4W...
  • Page 11 NEXPEED NR304G-4W User’s Manual The rear side for the NR304G-4W Router The NR304G-4W router provides power, console, and LAN cables, in addition to the G.SHDSL line connector in the backside. [Figure 1-2] The rear side of the NR304G-4W router NR304G-4W...

  • Page 12: Part Ii: Installing The Router

    NEXPEED NR304G-4W User’s Manual PART II: Installing the Router Physical Environments Checking in the Box Mounting the router on a wall Connecting Cables and Connectors NexComm Systems, Inc. 11 PAGE...

  • Page 13: Physical Environments

    NEXPEED NR304G-4W User’s Manual Physical Environments To make the installation as well as use of the NEXPEED NR304G-4W safe, a constant temperature and humidity are required. The conditions of physical environment are as follows : - Operating Temperature: 0º to 50ºC (32º to 122ºF) - Storage Temperature: -20º...

  • Page 14: Mounting The Router On A Wall

    NEXPEED NR304G-4W User’s Manual Mounting the router on a wall You can mount the router on a wall or other vertical surface by using the wall mounting screw holes on the router bottom. To attach the router to a wall, you must provide the screws and screwdriver.
  • Page 15 NEXPEED NR304G-4W User’s Manual Use the following steps to mount the router on the wall. Step1: Secure two screws 4.29 in. (10.9 cm) apart in a wall. Step2: Hang the router on screws. Step3: Place power supply on horizontal surface.

  • Page 16: Connecting Cables And Connectors

    NEXPEED NR304G-4W User’s Manual Connecting Cables and Connectors This part explains the physical set up for NEXPEED NR304G-4W router. Connect the cable after checking the connector in the rear side of NR304G-4W router. Ground Connection Warning The PROTECTIVE EARTHING CONDUCTOR or PROTECTIVE EARTHING TERMINAL must be permanently connected to the equipment.
  • Page 17 “DSL”, will be turned on when the router is ready for a normal communication. Connecting Console Port You can change the setting in the console to modify the functionality of the NR304G-4W. 1> Check if there is a console cable in the purchased product box.
  • Page 18 NEXPEED NR304G-4W User’s Manual Note: If random or illegible characters appear on your display, you probably have a communications-setting problem. Mask sure that your communications software is configured as follows : [Table 2-3] Console software parameters PARAMETER VALUE Bits per Second...

  • Page 19: Part Iii: Configuring The Router

    NEXPEED NR304G-4W User’s Manual PART III: Configuring the Router Reviewing the Default Configuration Accessing the Console User Mode Configuring SHDSL Port Operation Mode of the Interface Configuring IP Routing and IP Address Configuring Bridging Other Commands Related Interface Configuring Static IP Routes...

  • Page 20: Reviewing The Factory Default Configuration

    NEXPEED NR304G-4W User’s Manual Reviewing the Factory Default configuration The NR304G-4W is preconfigured with default settings. The following table lists these default settings. NR304G-4W(conf)# show config # System Configuration: # boot status: system configuration checksum OK. # 3.9.1 [Thu Jun 5 14:30:34 2003] running # 3.9.1 [Thu Jun 5 14:30:34 2003] saved...

  • Page 21: Accessing The Console

    NEXPEED NR304G-4W User’s Manual Accessing the Console You can change the setting in the console to modify the functionality of the NR304G-4W unit. The NEXPEED NR304G-4W provides CLI (Command Line Interface) in the text mode to setup and operate built-in functions, which can be used after the console is connected.

  • Page 22: User Mode

    NEXPEED NR304G-4W User’s Manual User Mode The NEXPEED NR304G-4W supports two modes: Login Mode and Configuration Mode. The dual mode like this provides a security feature for configuration and operation of the router. Login Mode This mode does not allow for a router configuration. In this mode, however, only such commands that are associated with monitoring are executed for the equipment operation.
  • Page 23 Usage Examples New password:yyyy Re-enter new password:yyyy And then you must save the changes in Flash memory. COMMAND (conf)# write config Note: If you lost your password, please contact Nexcomm Systems Co., Inc. Tel: +82-31-781-1862 E-mail: sales@nexcomm.co.kr support@nexcomm.co.kr NexComm Systems, Inc.

  • Page 24: Configuring Shdsl Port

    NEXPEED NR304G-4W User’s Manual Configuring SHDSL Port The NR304G-4W unit supports 2 ports with SHDSL connection. The each port is called s0 and s1. Related Commands : device <ifname> annex / device <ifname> gshdsl / show device gshdslset Configuring Annex Type (Annex A/ Annex B) The G.991.2 Annexes are specific to SHDSL.
  • Page 25 NEXPEED NR304G-4W User’s Manual <ifname> - interface name co|rt : unit type (COE or CPE), The default is a CPE. auto : sets the rate adaptive mode; this mode automatically trains for an optimal line rate by negotiating with the far-end Parameters equipment.
  • Page 26 NEXPEED NR304G-4W User’s Manual Using gshdslset Commands If you type the following command, it displays gshdslset help commands. COMMAND (conf)# gshdslset help (conf)# gs help Usage:gshdslset margin [0 .. 15] <ifname> gshdslset backoff [enable|disable] gshdslset status gshdslset psdtest [enable|disable] [ifname] gshdslset mode [0 ..
  • Page 27 NEXPEED NR304G-4W User’s Manual Note1: Operating Status Handshake, when local transceiver tries to reach the far-end transceiver. Training, indicates the startup training is in progress. Data, if successfully trained. Note2: Loop Attenuation The difference in decibels (dB) between the power received at the near-end and the power transmitted from the far-end.
  • Page 28 NEXPEED NR304G-4W User’s Manual Enabling/Disabling the Power back-off Once the initial SYNC has occurred, the COE(DSLAM) and the CPE can work together to reduce the amount of power used on the wire. If the data rate is set to a speed lower than the full capability of the loop being used, there is no need to push maximum power on the loop.

  • Page 29: Operation Mode Of The Interface

    NEXPEED NR304G-4W User’s Manual Operation Mode of the Interface The router can operate as a bridge, as a router, or as both (sometimes call a brouter). The router can be configured to perform general routing operation, bridging operation or bridging and routing operation.
  • Page 30 NEXPEED NR304G-4W User’s Manual Note1: Routing offers advantages over bridging : - It limits broadcasts to the local LAN segment. - It limits the protocols that are routed beyond the LAN segment. - Routed protocols allow networks to grow as large as needed.
  • Page 31 NEXPEED NR304G-4W User’s Manual Routing and Bridging Mode(Brouter) : routing is active, bridging is active In this mode, only IP packets are routed, and all other packets (IPX, NetBEUI, etc.) are handled with bridging. You set up an IP address to the interface and enable bridging to the interface.

  • Page 32: Configuring Ip Routing And Ip Address

    NEXPEED NR304G-4W User’s Manual Configuring IP Routing and IP Address The NR304G-4W unit supports one LAN and two SHDSL interfaces. The Routing mode becomes set as a default mode when set up the IP address (including “IP unnumbered”) in the interface.
  • Page 33 NEXPEED NR304G-4W User’s Manual (conf)# interface <ifname> ip unnumbered COMMAND (conf)# interface <ifname> ip <address> <mask> unnumbered : sets IP unnumbered <ifname> - interface name Parameters <address> - IP address <mask> - subnet mask Usage Examples: (conf)# int s0 ip 192.168.3.2 255.255.255.252...
  • Page 34 NEXPEED NR304G-4W User’s Manual Usage Examples: (conf)# int lan ip 192.168.3.2 255.255.255.224 secondary Note: Don’t forget adding the string secondary. Otherwise, it replaces your primary IP address with new IP address. Removing the assigned IP Address from the Interface To remove the assigned IP address from LAN or WAN interface, use the following command.

  • Page 35: Configuration Example

    NEXPEED NR304G-4W User’s Manual Usage Examples: (conf)# show interface (conf)# sh int lan (conf)# sh int -v (conf)# sh int -v s0 (conf)# sh int –c (conf)# sh int –c s0 Configuration Example1 Assigning IP address to the LAN interface and monitoring that interface: (conf)# interface lan ip 168.126.188.130 255.255.255.0...
  • Page 36 NEXPEED NR304G-4W User’s Manual ether 00:d0:84:01:08:b2, speed 10 Mbps half-duplex descriptor rhead:0x921e0 thead:0x91db8 ttail:0x91db8 statistics: 10 RxOK, 0 RxNoBufs, 0 RxMiss 0 RxCRCErr, 0 RxAlignErr, 0 RxDribbles 5 TxOK, 0 TxNotReady, 0 TxTooBig 0 TxLossCRS, 0 TxLateCols, 0 TxCollisions (conf)#...

  • Page 37: Configuring Bridging

    NEXPEED NR304G-4W User’s Manual Configuring Bridging The NR304G-4W router supports transparent bridging for LAN and WAN. Operation of Bridging If the destination address of the packet is known in the bridge table, the packet is forwarded on a single interface that is enabled bridging. If the packet's destination is unknown in the bridge table, the packet is flooded on all forwarding interfaces that are enabled bridging.
  • Page 38 NEXPEED NR304G-4W User’s Manual (conf)# interface <ifname> bridge enable COMMAND (conf)# interface <ifname> bridge disable Parameters <ifname> - Interface name Usage Examples: (conf)# int lan bridge enable (conf)# int s0 bridge enable Enabling and Disabling IP Routing Assign the IP address to the LAN interface to manage the router with Telnet, TFTP, SNMP, ICMP (ping), and so forth.
  • Page 39 Use the following command to view all entries in the bridge forwarding table. COMMAND (conf)# show bridge map As to forward bridged packets to the right network destination, the NR304G-4W uses a bridge table that associates end nodes with particular connections. It builds this table dynamically, in a process called transparent bridging.

  • Page 40: Configuration Examples

    NEXPEED NR304G-4W User’s Manual Configuration Examples Configuring Bridging-Only Mode : (conf)# interface s0 delete (conf)# interface s0 bridge enable (conf)# show interface wan Interface: s0, status <UP>, mtu 1500 ip address unnumbered Bridging-only mode encapsulation HDLC, Keepalive 1/10 idle-char FLAG, RT speed 2320/2320 Kbps (conf)# cf1.

  • Page 41: Configuring Link Encapsulation And Keepalive

    Configuring Link Encapsulation and Keepalive SHDSL Link Encapsulation The NR304G-4W and the remote device must agree upon the type of link encapsulation used. The NR304G-4W unit must encapsulate all outbound packets before sending them across the WAN, and the remote device must decapsulate them before forwarding the packets to the local network.
  • Page 42 NEXPEED NR304G-4W User’s Manual Usage Examples: (conf)# int s0 encap ethdlc (conf)# show interface s0 Keepalive You can configure the keepalive interval, which is the frequency at which the router sends messages to the other end, to ensure a network interface is alive.

  • Page 43: Other Commands Related Interface

    NEXPEED NR304G-4W User’s Manual Other Commands Related Interface Administrative forced-up feature for the LAN Interface The LAN interface with link-down state doesn’t reply to any ping request. It provides pros and cons in remote management environment. For example, when installed in the...
  • Page 44 NEXPEED NR304G-4W User’s Manual Bridging-only mode ether 00:d0:84:01:08:b2, speed 10 Mbps half-duplex (conf)# Description of Interface You can set up a meaningful description of the interface. A description is a user-defined text string. That string can contain a space or spaces.

  • Page 45: Configuring Static Ip Routes

    For routes that must be reliable, the administrator often configures more than one path (adds a secondary route), in which case the NR304G-4W chooses the primary route on the basis of an assigned metric.
  • Page 46 NEXPEED NR304G-4W User’s Manual Usage Examples: (conf)# ip route del default deletes all default gateways. Static Route To add a route, use the following command. COMMAND (conf)# ip route add <net> <mask> <ifname> [<gw>] [<metric>] <net> <mask> - adds the destination network <ifname>...
  • Page 47 NEXPEED NR304G-4W User’s Manual Viewing the Routing Table To display the information for the routing table, use the following command. Displays only routes is current available COMMAND (conf)# show ip route [-a] Parameters -a options is displayed all routes in the routing table.

  • Page 48: Configuring Rip

    NEXPEED NR304G-4W User’s Manual Configuring RIP The NR304G-4W router supports RIP1 and RIP2 to configuring the dynamic route. The Routing Information Protocol (RIP) is one of the most popular protocols currently in use. It is a classical distance-vector routing protocol. RIP is documented in RFC 1058.
  • Page 49 NEXPEED NR304G-4W User’s Manual To set or clear RIP options on an interface, use the following command. (conf)# rip enable|disable <ifname> rxrip1|txrip1|rxrip2|txrip2 COMMAND (conf)# rip enable|disable <ifname> rxdefault|txdefault <ifname> - interface name rxrip1: Receive and process RIP-1 packets only txrip1: Transmit RIP-1 packets only...
  • Page 50 NEXPEED NR304G-4W User’s Manual Sending RIP packets manually to the specified interface COMMAND (conf)# rip send <ifname> v1|v2 Usage Examples: (conf)# rip send s0 v2 immediately sends version 2 updates to the s0 link. Viewing your RIP Interfaces Displays RIP interfaces.

  • Page 51: Configuring The Arp Table

    NEXPEED NR304G-4W User’s Manual Configuring the ARP Table ARP (Address Resolution Protocol) is a protocol designed for an acquisition of information for mapping between the IP address and physical MAC address. Currently, the most prevalent IP address is the address used by the network layers. And when the data transmission takes place through the physical media connected with the actual router, the address the communication uses is not the IP address but the MAC address.

  • Page 52: Saving The Configuration

    NEXPEED NR304G-4W User’s Manual Saving the Configuration The system configuration values currently in effect are saved in Flash memory. The configuration values currently being used by the system are lost when the system is rebooted. To prevent the system configuration values from being lost, the non-volatile memory called Flash memory is employed.

  • Page 53: Rebooting The System

    NEXPEED NR304G-4W User’s Manual Rebooting the system Unplugging and subsequent plugging of the power source adapter for NR304G-4W triggers a reboot of the system hardware. The following command is available to perform a software-wise reboot of the system. COMMAND (conf)# reboot flash Note: Before rebooting the system, you must save current configuration to Flash memory.

  • Page 54: Part Iv: Configuring Advanced Functions

    NEXPEED NR304G-4W User’s Manual PART IV: Configuring advanced Functions Configuring DHCP Configuring NAT Configuring IP Filter Load Balancing and Line-Backup Link-Multiplexing NexComm Systems, Inc. 53 PAGE...

  • Page 55: Configuring Dhcp

    The DHCP (Dynamic Host Configuration Protocol) protocol enables a DHCP client who has not set the IP address to set the IP address automatically. NEXPEED NR304G-4W supports the following two functions: a DHCP relay function that delivers the IP address request packet received from the DHCP client to the specified DHCP server, and a DHCP server function that allocates the IP address upon the receipt of the IP address request packet.
  • Page 56 Lease time specifies how long a DHCP IP address lives before it needs to be renewed. If the host. Renews the address before it expires, the NR304G-4W provides the same address. You must set up this option to using a DHCP server.
  • Page 57 NEXPEED NR304G-4W User’s Manual Deleting the IP address Pool 1> stop the dhcp-sever feature for the IP address pool COMMAND (conf)# dhcp <poolname> stop 2> delete the IP address pool COMMAND (conf)# dhcp <poolname> del Management the assigned IP address...

  • Page 58: Configuring Nat

    IP address, NR304G-4W can perform a service known as Network Address Translation(NAT). NAT works as follows: When the local host sends packets to the remote network, NR304G-4W automatically translates the host’s private address on the local network to an official address on the remote network.
  • Page 59 NEXPEED NR304G-4W User’s Manual NAT can be implemented to use a single address or multiple address. Note: Turns RIP off, so the address of the NR304G-4W is not propagated to the Internet or remote networks. Setting up Static Mapping COMMAND (conf)# nat static <local-ip>...
  • Page 60 NEXPEED NR304G-4W User’s Manual (conf)# map|portmap <local-startip> <local-endip> COMMAND <poolname> map : set up a dynamic mapping portmap : set up a port mapping <local-startip> <local-endip> - range of local IP address, start IP Parameters address and last IP address <poolname>...
  • Page 61 NEXPEED NR304G-4W User’s Manual Configuration example (conf)# nat pool test 168.126.188.101 168.126.188.110 creates a global IP address pool called test. The range of the pool is from 168.126.188.101 to 168.126.188.110. (conf)# nat pool test2 168.126.188.111 168.126.188.111 creates a global IP address pool called test2. The range of the pool is from 168.126.188.111 to 168.126.188.111.
  • Page 62 All the entries for a connection are freed(expire) when the connection disconnects. The NR304G-4W unit removes entries from the translation table entries on the basis of the following timeouts: > TCP translations time out after 240 seconds >...
  • Page 63 NEXPEED NR304G-4W User’s Manual Deleting translation-table entry : All entries or a particular entry of the NAT table can be deleted. COMMAND (conf)# nat clear {all | <global-ip> [<port>]} all : delete all entries <global-ip> - delete an entry corresponding to a particular IP address (after-conversion address).

  • Page 64: Configuring Ip Filter

    Filters inspect packets to determine whether or not to prevent them from entering or leaving your network. When a filter is in use, NR304G-4W examines every packet in the packet stream and takes action if the defined filter conditions are present. The action of the NR304G-4W depends both on the conditions specified within the filter and how the filter is applied.
  • Page 65 NEXPEED NR304G-4W User’s Manual Attention: If the block filter is chosen to setup, all other packets that have no relation with the block filter will pass through. If the pass filter is setup, however, all other packets that have no relation with the pass filter will be blocked.
  • Page 66 NEXPEED NR304G-4W User’s Manual Configuration example Step1: filter forwards the packet satisfied by the following conditions: (conf)# filter in 10 pass tcp src 210.123.2.1/32 dst 168.126.10.1/32:23 =>Admit the packet of telnet access (port no. 23) of source IP address 210.123.2.1 and destination IP address 168.126.10.1...

  • Page 67: Load Balancing And Line-Backup

    NEXPEED NR304G-4W User’s Manual Load Balancing and Line-Backup NR304G-4W that has more than one WAN port offer the functionality of Load Balancing so it enables to increase the bandwidth. Load Balancing There are a few methods to increase the bandwidth in the case of more than 1 channel.
  • Page 68 NEXPEED NR304G-4W User’s Manual Configuring Load-Balancing In the following topology, two routers, NR304G-4W #1 and NR304G-4W #2, connect back-to- back over two SHDSL interfaces (s0 and s1) with high-level data link control (HDLC) encapsulation. The LAN interface is connected with a local network device (hub or switch). The LAN interface supports either 10BaseT or 100BaseTx connection.
  • Page 69 If the link fails, 134217728 is added to the cost so that the failed link can not be chosen as a transport route. In the following topology, two routers, NR304G-4W #1 and NR304G-4W #2, connect back-to- back over two SHDSL interfaces (s0 and s1) with high-level data link control (HDLC) encapsulation.
  • Page 70 NEXPEED NR304G-4W User’s Manual Configuration for NR304G-4W #1 Configuration for NR304G-4W #2 (conf)# device s0 gshdsl co 2320 (conf)# device s0 gshdsl rt (conf)# device s1 gshdsl co 512 (conf)# device s1 gshdsl rt (conf)# interface lan ip 10.0.1.1 255.255.255.0 (conf)# interface lan ip 10.0.2.1 255.255.255.0...

  • Page 71: Link-Multiplexing

    Before using link-multiplexing feature, you should create a MXL(Multiplexed Link) interface. NR304G-4W can have upto 1 MXL interfaces and this name is "mx0"(fixed and can not be changed by user). You can think them as logical interfaces which have the same features with any other separated interfaces.
  • Page 72 NEXPEED NR304G-4W User’s Manual long as they do not overlap. COMMAND (conf)# device mx0 bind <ifname> Parameters <ifname> - port name Usage Examples: (conf)# device mx0 bind s0 (conf)# device mx0 bind s1 This bonds ports s0 and s1 into the mx0.
  • Page 73 NEXPEED NR304G-4W User’s Manual name type side speed ------------------------------------------- 10/100BASE-T auto gshdsl(ANNEX-A) auto gshdsl(ANNEX-A) auto bind = { s1 s0 } (conf)# interface s0 ip unnumbered no such interface "s0" type "show device" to get interface name. (conf)# STEP4> Finally, save your changes and reboot the system.
  • Page 74 NEXPEED NR304G-4W User’s Manual Usage Examples: (conf)# device mx0 unbind all STEP3> Save your changes and reboot the system. (conf)# write config (conf)# reboot flash NexComm Systems, Inc. 73 PAGE...
  • Page 75 NEXPEED NR304G-4W User’s Manual Configuration example: In the following example, two routers, NR304G-4W #1 and NR304G-4W #2, connect back-to- back over two pairs SHDSL lines with mx0 interface. Two routers are configured as a bridge and set up the high-level data link control (HDLC) encapsulation.

  • Page 76: Part V: System Maintenance

    NEXPEED NR304G-4W User’s Manual PART V: System maintenance Accessing the router through Telnet Configuring SNMP Upgrading the System Software NexComm Systems, Inc. 75 PAGE...

  • Page 77: Accessing The Router Through Telnet

    The NR304G-4W supports both telnet client and telnet server. Not only you can open a Telnet session to the router from any computer, but also you can open a Telnet session to the workstation or other router on the same Ethernet network (or remote network) from the NR304G-4W.

  • Page 78: Configuring Snmp

    MIB variables. Configuring SNMP agent Only the SNMP manager that was registered with the NR304G-4W has access to the local SNMP agent. The ‘Community’, ‘Authority’, ‘Trap Transmission or not’ can be set differently for each manager. If you set ‘Authentication Trap’, whenever any unregistered manager attempts SNMP Query, the "Authentication Trap"...
  • Page 79 NEXPEED NR304G-4W User’s Manual Registering a SNMP Manager By default, SNMP is not configured. To add a SNMP manager, use the following command. (conf)# snmp <address> <community> read|rdwr COMMAND [trapon|trapoff] <address> - IP address of SNMP manager station <community> - Specifies the SNMP community name read|rdwr : sets an authority, Allow read-only or allow read and write.
  • Page 80 NEXPEED NR304G-4W User’s Manual Viewing the SNMP configuration Displays the SNMP configuration. COMMAND (conf)# show snmp Sending ‘cold-start Trap’ to the Manager manually COMMAND (conf)# snmp start Deleting the SNMP Manager COMMAND (conf)# snmp del <address> <address> - Delete SNMP manager corresponding to the...

  • Page 81: Upgrading The System Software

    Upgrading the System Software The NR304G-4W unit can upgrade using TFTP (Trivial File Transfer Protocol). If a newer version of the software for your NR304G-4W unit is available, you be sure to perform any required preparatory tasks. Preparing to upgrade Before upgrading system firmware, be sure to confirm the following items.
  • Page 82 NEXPEED NR304G-4W User’s Manual STEP3> Reboot your router to verify whether the downloaded firmware is correct. And verifying firmware version after reboots. 1> First, you save current configuration to Flash memory using following command : COMMAND (conf)# write config 2> Reboot your router to load new firmware to memory.
  • Page 83 X`YUX]_UXUX {m{wGzŒ™Œ™ X`YUX]_UXUY 1> Connect LAN port on the NR304G-4W router to your PC(TFTP Server) using UTP crossover cable. 2> Configure “192.168.1.1/255.255.255.0” IP address on your router. 3> Configure “192.168.1.2/255.255.255.0” IP address on your PC. 4> Make sure the MS-DOS window is running on your PC and execute ping command.
  • Page 84 NEXPEED NR304G-4W User’s Manual writing boot image ... verify OK (conf)# The following command displays both the version of the firmware currently stored in Flash memory and the version of the firmware currently running in memory(DRAM). (conf)# show version System Software Release: new version 3.9.1 [Thu Jun 5 14:30:34 2003] running...

  • Page 85: Part Vi: Configuration Examples

    NEXPEED NR304G-4W User’s Manual PART VI: Configuration Examples Bridging Configuration with 4-wire Routing Configuration with 4-wire Bridging Configuration with 2-wire Routing Configuration with 2-wire NexComm Systems, Inc. 84 PAGE...

  • Page 86: Example1. Bridging Configuration With 4-Wire

    NEXPEED NR304G-4W User’s Manual Example1. Bridging Configuration with 4-wire This example explains how to connect two NR304G-4W routers using 4 wires, with the bridging configuration method. To bind s0 and s1 ports, configure a MXL interface. A company has received a C class , 256 IP addresses from 203.247.170.0 to 203.247.170.255 and will configure local area network(LAN) with this addresses.
  • Page 87 CPower on the router and enter the password to log in the router. The default password is a small letter “password”. If you log in the router, the login prompt NR304G-4W> appears. CEnter enable command and the password to enter configuration mode. The default password is a small letter “password”.
  • Page 88 CPower on the router and enter the password to log in the router. The default password is a small letter “password”. If you log in the router, the login prompt NR304G-4W> appears. CEnter enable command and the password to enter configuration mode. The default password is a small letter “password”.

  • Page 89: Example2. Routing Configuration With 4-Wire

    NEXPEED NR304G-4W User’s Manual Example2. Routing Configuration with 4-wire This example explains how to connect two NR304G-4W routers using 4 wires, with the routing configuration method. To bind s0 and s1 ports, configure a MXL interface. A company has received a C class , 256 IP addresses from 203.247.170.0 to 203.247.170.255 and will configure local area network(LAN) with this addresses.
  • Page 90 CPower on the router and enter the password to log in the router. The default password is a small letter “password”. If you log in the router, the login prompt NR304G-4W> appears. CEnter enable command and the password to enter configuration mode. The default password is a small letter “password”.
  • Page 91 CPower on the router and enter the password to log in the router. The default password is a small letter “password”. If you log in the router, the login prompt NR304G-4W> appears. CEnter enable command and the password to enter configuration mode. The default password is a small letter “password”.
  • Page 92 NEXPEED NR304G-4W User’s Manual =CSet the IP unnumbered to the MXL interface. NR304G-4W(conf)# interface mx0 ip unnumbered >CSet the default gateway. NR304G-4W(conf)# ip route add default mx0 ?CSave the current configuration to Flash memory. NR304G-4W(conf)# write config @CReboot your system.

  • Page 93: Example3. Bridging Configuration With 2-Wire

    YZYWr uyZW[no In this example the NR304G-4W and NR304GH are configured as a bridge(modem). It is used only for packet transport and all of the users connected to the modem are in the same network. Configure the public IP address and default gateway of NR304G-4W so that the management can be possible.
  • Page 94 CPower on the router and enter the password to log in the router. The default password is a small letter “password”. If you log in the router, the login prompt NR304G-4W> appears. CEnter enable command and the password to enter configuration mode. The default password is a small letter “password”.
  • Page 95 NEXPEED NR304G-4W User’s Manual @CRemove Routing mode from the LAN interface. NR304G-4W(conf)# ip routing disable lan ACSet the default gateway. (for management) NR304G-4W(conf)# ip route add default lan 203.210.10.1 BCSave the current configuration to Flash memory. NR304G-4W(conf)# write config CCReboot your system.

  • Page 96: Example4. Routing Configuration With 2-Wire

    NEXPEED NR304G-4W User’s Manual Example4. Routing Configuration with 2-wire This example explains how to connect the NR304G-4W and the CPE router, NR304G-4W, with the routing configuration method. The IP address of gateway(Router) is 203.210.10.1, Network A 210.16.1.0/255.255.255.128, Network B 210.16.1.128/255.255.255.128 .
  • Page 97 CPower on the router and enter the password to log in the router. The default password is a small letter “password”. If you log in the router, the login prompt NR304G-4W> appears. CEnter enable command and the password to enter configuration mode. The default password is a small letter “password”.
  • Page 98 NEXPEED NR304G-4W User’s Manual @CSet the default gateway. NR304G-4W(conf)# ip route add default lan 203.210.10.1 ACConfigure the static routes of your remote networks. NR304G-4W(conf)# ip route add 210.16.1.0 255.255.255.128 s0 NR304G-4W(conf)# ip route add 210.16.1.128 255.255.255.128 s1 BCSave the current configuration to Flash memory.

  • Page 99: Appendix

    NEXPEED NR304G-4W User’s Manual Appendix Connector Pin-outs NexComm Systems, Inc. 98 PAGE...

  • Page 100: Connector Pin-Outs

    NEXPEED NR304G-4W User’s Manual Connector Pin-outs A.1 LAN Port The LAN port uses an Ethernet port and supports 10/100Mbps(auto) speed on the UTP cable at a distance of up to 100 meters or less. The Ethernet connector is a RJ-45. Table A-1 lists the pin-outs for the Ethernet connector (labeled "LAN").
  • Page 101 {— y•Ž z€ujX z€ujY The NR304G-4W enables transmission of two SHDSL links on the same physical cable. Table A-3 lists the pin-outs for the RJ-45 connector (labeled "LINE"). Table A-3 : SHDSL Port (RJ-45) Pin-outs Link # PIN #...

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