NETGEAR RH348 Reference Manual
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NETGEAR RH348 Reference Manual

NETGEAR RH348 Reference Manual

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Reference Guide for the
Model RT328 and Model
RH348 ISDN Routers
NETGEAR, Inc.
A Bay Networks Company
4401 Great America Parkway
Santa Clara, CA 95054 USA
Phone 800-211-2069
M-RH348NA-0
May 1998

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  • Page 1 Reference Guide for the Model RT328 and Model RH348 ISDN Routers NETGEAR, Inc. A Bay Networks Company 4401 Great America Parkway Santa Clara, CA 95054 USA Phone 800-211-2069 M-RH348NA-0 May 1998...
  • Page 2 EN 55 022 Decla0ration of Conformance This is to certify that the Model RT328 ISDN Router and the Model RH348 ISDN Router are shielded against the generation of radio interference in accordance with the application of Council Directive 89/336/EEC, Article 4a.

  • Page 3: Customer Support

    Certificate of the Manufacturer/Importer It is hereby certified that the Model RT328 ISDN Router and the Model RH348 ISDN Router have been suppressed in accordance with the conditions set out in the BMPT-AmtsblVfg 243/1991 and Vfg 46/1992. The operation of some equipment (for example, test transmitters) in accordance with the regulations may, however, be subject to certain restrictions.

  • Page 5: Table Of Contents

    Contents Preface Purpose ........................... xv Audience .......................... xv Conventions ........................xvi Special Message Formats ..................xvi Use of Enter, Type, and Press ...................xvi Other Conventions ....................xvii Related Publications .......................xvii Chapter 1 Introduction About the Router ......................1-1 Features ..........................1-1 Key Features ......................1-2 ISDN Support ......................1-3 Multilink PPP Support ....................1-3 TCP/IP Support ......................1-4 IP Address Masquerading by Dynamic NAT+ ............1-4...
  • Page 6 Connecting the Ethernet Cable ................2-7 Using Twisted Pair LAN Cabling ................2-8 Using Coaxial or Fiber LAN Cabling ..............2-8 Connecting to the Hub Ports in the Model RH348 Router ........2-8 Connecting a Telephone, Fax, or Modem ..............2-8 Connecting the Power Adapter ................2-8 Connecting for Configuration ..................2-9...
  • Page 7 Ethernet Setup ......................3-11 General Setup Menu ....................3-11 DHCP and TCP/IP Setup ..................3-12 Manager Password Setup .....................3-14 Chapter 4 Configuration for Internet Access Information Checklist ......................4-1 Internet Access Configuration ..................4-2 Configuration for Single User Account ................4-4 Chapter 5 Remote Node Configuration Editing PPP Options .......................5-4 Bandwidth on Demand ....................5-6 Chapter 6...
  • Page 8 Reducing Unnecessary Calls by Windows 95 ..............8-9 Diagnosing the Situation ..................8-9 Implementing the Filter ...................8-11 Applying the Filter ....................8-14 Chapter 9 System Maintenance System Status ........................9-1 Terminal Baud Rate ......................9-3 Log and Trace .........................9-4 View Error Log ......................9-4 Syslog and Accounting .....................9-4 Diagnostic Menu ......................9-6 ISDN Tools .......................9-6 TCP/IP Tools ......................9-7...
  • Page 9 Troubleshooting a TCP/IP Network Using a Ping Utility ..........10-4 Testing the LAN Path to Your Router ..............10-4 Testing the Path from Your PC to a Remote Device ..........10-5 Troubleshooting a Remote Node or ISP Connection ............10-5 Troubleshooting a Remote User Connection ..............10-6 Troubleshooting the Manager Interface ................10-7 Testing the Phone Ports ....................10-7 Restoring the Default Configuration and Password ............10-7...
  • Page 10 Contents...
  • Page 11 Figure 2-2. Front Panel of Model RH348 Router ............2-4 Figure 2-3. Rear Panel of the Model RT328 Router ...........2-6 Figure 2-4. Rear Panel of the Model RH348 Router ..........2-6 Figure 3-1. Start-up Display ..................3-2 Figure 3-2. Manager Main Menu ................3-4 Figure 3-3.
  • Page 12 Figure 9-1. Packet Examples ..................9-3 Figure 9-2. Trace Display for a Successful TCP/IP Protocol Connection ....9-7 Figure 9-3. Trace Display for a Failed TCP/IP Protocol Connection ......9-7 Figure D-1. ISDN Protocol Analyzer Display .............. D-4 Figure D-2. Trace Screen ................... D-7 Figure D-3.
  • Page 13 Tables Table 1-1. Netmask Notation Translation Table for One Octet ........1-11 Table 1-2. Netmask Formats ...................1-12 Table 2-1. LED Descriptions ..................2-5 Table 3-1. Manager Menu Commands ..............3-3 Table 3-2. Manager Menu Summary ...............3-5 Table 3-3. ISDN Setup Menu Parameters for North America ........3-7 Table 3-4.
  • Page 14 Table 9-1. System Maintenance Status Menu Fields ..........9-1 Table 9-2. System Maintenance Status Menu Fields ..........9-2 Table 9-3. System Maintenance - Log and Trace Menu Fields .........9-4 Table 9-4. System Maintenance - Syslog and Accounting Menu Fields ....9-5 Table 9-5. System Maintenance - Diagnostic Menu Fields ........9-6 Table 10-1.

  • Page 15: Preface

    Purpose This guide describes the features of the Model RT328 router and the Model RH348 router and provides installation and configuration instructions. When discussing features, functions, or specifications that apply to both router models, the guide refers to the Model RT328/RH348 router.

  • Page 16: Conventions

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers Conventions This section describes the conventions used in this guide. Special Message Formats This guide uses the following formats to highlight special messages: Note: This format is used to highlight information of importance or special interest.

  • Page 17: Other Conventions

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers Other Conventions This guide uses the following typographical conventions: italics Book titles and UNIX file, command, and directory names. Screen text, user-typed command-line entries. courier font Initial Caps Menu titles and window and button names.

  • Page 19: Introduction

    RH348 ISDN Router and discusses planning considerations for installation. About the Router The Model RT328/RH348 router transports data from one local area network (LAN) to another through a wide area network (WAN) connection. The router compares the network addresses of data packets sent through the LAN to the entries in its address tables.

  • Page 20: Key Features

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers Key Features The Model RT328/RH348 router provides the following features: • Standard basic rate ISDN (BRI) connection – ISDN, 2B+D, providing two 64 Kbps data channels and a 16 Kbps control channel –...

  • Page 21: Isdn Support

    Free technical support seven days a week, twenty-four hours a day ISDN Support The Model RT328/RH348 router is designed to take advantage of Integrated Services Digital Network (ISDN) for transmission of data over digital telephone networks. A basic rate interface (BRI), which is the usual ISDN implementation, consists of two 64 kilobit per second (Kbps) B channels for data and one 16 Kbps D channel for control information.

  • Page 22: Tcp/Ip Support

    1-6. IP Address Masquerading by Dynamic NAT+ Both NETGEAR routers allow an entire department of networked PCs to share an Internet account using only a single IP address, which may be statically or dynamically assigned by your Internet service provider (ISP). This technique, an extension of network address translation (NAT), is known as IP address masquerading and typically allows the use of a very inexpensive ISP account.

  • Page 23: Pap And Chap Authentication

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers PAP and CHAP Authentication For connecting to other routers, the Model RT328/RH348 router supports two authentication protocols: Password Authentication Protocol (PAP) and Challenge Handshake Authentication Protocol (CHAP). PAP sends the user name and password in plain text. CHAP scrambles the password before it is sent over the wire.

  • Page 24: Basic Router Concepts

    Using this information, it chooses the best path for forwarding network traffic. Routers vary in performance and scale, number of routing protocols supported, and types of physical WAN connections supported. The Model RT328/RH348 router is a small office router that routes the IP protocol over a dial-up ISDN connection.

  • Page 25: Ip Addresses And The Internet

    RIP environment. To prevent this convergence process from being excessively long, RIP is limited to 15 hops maximum. The Model RT328/RH348 router supports both the older RIP-1 and the newer RIP-2 protocols. Among other improvements, RIP-2 supports subnetting and multicasting.

  • Page 26: Figure 1-1. Three Main Address Classes

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers There are five standard classes of IP addresses. These address classes have different ways of determining the network and host sections of the address, allowing for different numbers of hosts on a network.

  • Page 27: Netmask

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers Class E addresses are for experimental use. This addressing structure allows IP to uniquely identify each physical network and each node on each physical network. For each unique value of the network portion of the address, the base address of the range (host address of all zeros) is known as the network address and is not usually assigned to a host.

  • Page 28: Subnet Addressing

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers Subnet Addressing By looking at the addressing structures, you can see that even with a Class C address, there are a large number of hosts per network. Such a structure is an inefficient use of addresses if each end of a routed link requires a different network number.

  • Page 29: Table 1-1. Netmask Notation Translation Table For One Octet

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers Note: The number 192.68.135.127 is not assigned because it is the broadcast address of the first subnet. And 192.68.135.128 is not assigned because it is the network address of the second subnet.

  • Page 30: Private Ip Addresses

    255.255.255.248 255.255.255.252 255.255.255.254 255.255.255.254 NETGEAR strongly advises that all hosts on a LAN segment use the same netmask for the following reasons: • So that hosts recognize local IP broadcast packets When a device broadcasts to its segment neighbors, it uses a destination address of the local network address with all ones for the host address.

  • Page 31: Single Ip Address Operation Using Nat

    The Model RT328/RH348 router employs a method called extended NAT. This method allows an entire department of networked PCs to share an Internet account using only a single IP address, which may be statically or dynamically assigned by your Internet service provider (ISP).

  • Page 32: Address Resolution Protocol

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers This scheme offers the additional benefit of firewall protection because the internal LAN addresses are not available to the Internet through the translated connection. All incoming inquiries are filtered out by the router. This filtering can prevent intruders from probing your system. You can specify one server (for example, a Web server) on your local network and make it accessible by outside users.

  • Page 33: Ip Configuration By Dhcp

    (DHCP) server. The DHCP server stores a list or pool of IP addresses, along with other information (such as gateway and DNS addresses) that it may assign to the other devices on the network. The Model RT328/RH348 router has the capacity to act as a DHCP server. Introduction...

  • Page 35: Router Installation And Connection

    • 9-pin D-connector to 25-pin D-connector adapter • This guide • Getting Started Using FirstGear for the Model RT328 and Model RH348 ISDN Routers • FirstGear Installation Diskette • Warranty card Call your dealer if there are any wrong, missing, or damaged parts. Keep the carton, including the original packing materials, to repack the router if there is a need to return it for repair.

  • Page 36: Isdn Services Checklist

    • North American Services The Model RT328/RH348 router has been approved by Bellcore and has the IOC (ISDN Ordering Code) “S” Capability, EZ-ISDN1. Ordering your ISDN line in this configuration will provide basic data and voice service. If you wish to use any advanced calling features such as call waiting, you will need to order a higher level of service such as IOC “U.”...

  • Page 37: Network Checklist

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers Network Checklist The Model RT328/RH348 router uses the Internet Protocol (IP). The IP configuration has the following requirements: • Host devices must have established IP addresses (usually defined by your network manager or Internet service provider).

  • Page 38: Connecting The Router

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers Connecting the Router The front panels of the Model RT328 router, as illustrated in Figure 2-1, and the Model RH348 router, as illustrated in Figure 2-2, contain status LEDs. Refer to the illustrations to locate the LEDs and to Table 2-1 for descriptions.
  • Page 39 Reference Guide for the Model RT328 and Model RH348 ISDN Routers Table 2-1 lists and describes each LED on the front panel of the router. These LEDs are green when lit. Table 2-1. LED Descriptions Label Activity Description PWR (Power) Power is supplied to the router.

  • Page 40: Figure 2-3. Rear Panel Of The Model Rt328 Router

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers The rear panel of the Model RT328 router is shown in Figure 2-3, and the rear panel of the Model RH348 router is shown in Figure 2-4. Refer to this diagram to identify all of the ports on the router when you attempt to make any connections.

  • Page 41: Connecting The Serial Cable (Optional)

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers Warning: Several of the connectors and connection cables are very similar. It is important that you use the correct cable for each connection and that you do not connect the ports incorrectly, because serious damage to your router could result.

  • Page 42: Using Twisted Pair Lan Cabling

    Connections are made using standard straight-through UTP cables like the one included with your router. The hub of the Model RH348 router may be connected to another hub using the uplink port on the hub to which you are connecting or by using a crossover cable to a normal port.

  • Page 43: Connecting For Configuration

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers Connecting for Configuration If you are a PC user, you can configure the router through either the FirstGear ISDN Router Configuration Utility, which is an easy-to-use software program, or the menu-based built-in Manager interface.
  • Page 44 Reference Guide for the Model RT328 and Model RH348 ISDN Routers To make a Telnet connection from the LAN, you must know which of the two LAN interfaces (UTP or AUI) is enabled and make sure that the interface is connected to the LAN. The factory default is the UTP interface.

  • Page 45: Router Configuration

    FirstGear is an easy-to-use Windows-based utility that leads you through a Quick Setup or an Advanced menu for configuring your router. For FirstGear instructions, refer to Getting Started Using FirstGear for the Model RT328 and Model RH348 ISDN Routers. •...

  • Page 46: Powering On The Router

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers Powering on the Router When you turn power on to the router, several internal tests are performed by the router and your ISDN line is initialized. After the initialization, the start-up display appears, as illustrated in Figure 3-1.

  • Page 47: Navigating The Manager

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers Navigating the Manager The Manager is the interface that you use to configure your router. Table 3-1 lists and describes the commands that enable you to navigate through the menus in the Manager.

  • Page 48: Figure 3-2. Manager Main Menu

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers The Manager Main Menu is illustrated in Figure 3-2. Figure 3-2. Manager Main Menu Router Configuration...

  • Page 49: Manager Menu Summary

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers Manager Menu Summary Table 3-2 describes the top-level Manager menus. Table 3-2. Manager Menu Summary Number Menu Title Description General Setup This menu is accessed to set up general information and enable specific protocol routing or bridging.

  • Page 50: General Setup Menu

    For identification purposes, choose a descriptive name for the router, such as RT328 or RH348. The name should be no more than 8 alphanumeric characters. Spaces are not allowed, but dashes ( - ) and underscores ( _ ) are accepted. The name can be used for CHAP authentication and is displayed as the prompt in the Command Mode.

  • Page 51: Isdn Menus

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers ISDN Menus Menu 2 is for configuring your ISDN line. Depending on what switch the telephone company has for your particular installation, you may have more than one telephone number. If you are in North America, you may also have SPIDs (Service Profile Identifiers).

  • Page 52: Dss1 Isdn Menu

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers Figure 3-4 shows Menu 2 - ISDN Setup for North America. Figure 3-4. Menu 2 - ISDN Setup for North America DSS1 ISDN Menu Use the commands described in...
  • Page 53 Reference Guide for the Model RT328 and Model RH348 ISDN Routers Table 3-4 lists and describes the fields and field descriptions for Menu 2 - ISDN Setup. Table 3-4. ISDN Setup Field Descriptions Field Description Switch Type This field is fixed as DSS1.
  • Page 54 Reference Guide for the Model RT328 and Model RH348 ISDN Routers Table 3-4. ISDN Setup Field Descriptions (continued) Field Description Analog Call Routing All analog calls are routed to the A/B Adapter 1 if the setting is A/B Adapter 1. The calls are routed to the A/B Adapter 2 if the setting is A/B Adapter 2.

  • Page 55: Ethernet Setup

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers Ethernet Setup Menu 3 is for configuring the Ethernet LAN parameters, including interface type, filters, DHCP, and IP address information. From the Main Menu, enter 3 to display Menu 3 – Ethernet Setup.

  • Page 56: Dhcp And Tcp/Ip Setup

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers DHCP and TCP/IP Setup The router has the capability to act as a DHCP server, allowing it to assign IP, DNS, and Default Gateway addresses to attached PCs or workstations. The assigned Default Gateway address is the LAN address of the router, as set in the TCP/IP section.

  • Page 57: Table 3-6. Menu 3 - Ethernet Setup Menu Fields

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers Table 3-6. Menu 3 - Ethernet Setup Menu Fields (continued) Field Description TCP/IP Setup (continued) RIP Direction This parameter determines how the router handles RIP (Routing Information Protocol). If set to Both (default), the router broadcasts the routing table of the router on the LAN and incorporates RIP broadcasts by other routers into its routing table.

  • Page 58: Manager Password Setup

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers Manager Password Setup To change the Manager password: Select option 23 (System Security) from the main menu. Enter 1 to display Menu 23.1 - System Security - Change Password.

  • Page 59: Configuration For Internet Access

    Chapter 4 Configuration for Internet Access This chapter provides information to help you configure your Model RT328/RH348 router for Internet access. Information Checklist Use Menu 4 of the Manager to configure Internet access. Before you configure the router for Internet access, make sure your ISP (Internet service provider) provides you with the following information: •...

  • Page 60: Internet Access Configuration

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers Internet Access Configuration You can configure the router for access to an Internet service provider (ISP) using Menu 4, Internet Access Setup. When you complete this menu, the router will automatically add a Remote Node for your ISP in Menu 11, using typical ISP configuration parameters in addition to those you have specified in Menu 4.
  • Page 61 Reference Guide for the Model RT328 and Model RH348 ISDN Routers Enter your password in the My Password field. Enter the password associated with the login name from your ISP. Enter single-user account information in the Single User Account field.

  • Page 62: Configuration For Single User Account

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers Configuration for Single User Account The Model RT328/RH348 router implements NAT (IP masquerading), allowing the use of a single-user account for Internet access. The steps for configuring your router for single-user Internet access are similar to those for conventional Internet access, with the exception that you need to fill in three extra fields.

  • Page 63: Remote Node Configuration

    Chapter 5 Remote Node Configuration This chapter discusses the protocol-independent parameters used to configure a remote node. The protocol-dependent (TCP/IP) configuration is covered in a later chapter. A remote node represents both a remote gateway and the network behind it, across an ISDN connection.
  • Page 64 Reference Guide for the Model RT328 and Model RH348 ISDN Routers Table 5-1. Menu 11.1 Remote Node Profile Fields Field Description Rem Node Name This field is required. Enter a descriptive name for the remote node (for example, MyOffice). This field supports up to eight characters. This name must be unique from any other remote node name or remote dial-in user name.
  • Page 65 Multilink call. If the called router supports BACP , that router will provide the dial number for a second call. In North America, NETGEAR recommends that you enter 1 and the area code with the number, even if it is a local call.

  • Page 66: Editing Ppp Options

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers Table 5-1. Menu 11.1 Remote Node Profile Fields (continued) Field Description Session Options: Output Filter Sets In these fields, select which filter set(s) you would like to implement to filter the Call Filter Sets incoming and outgoing traffic between this remote node and the router.
  • Page 67 Reference Guide for the Model RT328 and Model RH348 ISDN Routers Table 5-2 lists and describes each field in Menu 11.2 - Remote Node PPP Options. Refer to“Bandwidth on Demand” on page 5-6 for further information about related fields in this menu.

  • Page 68: Bandwidth On Demand

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers Bandwidth on Demand The Bandwidth on Demand (BOD) feature allows you to bundle both B channels in one logical connection. The second channel is added and subtracted dynamically according to traffic demand.

  • Page 69: Dial-In Configuration

    Chapter 6 Dial-In Configuration You can configure the router to receive calls from remote dial-in users (for example, telecommuters) and remote nodes. Several differences exist between remote dial-in users and remote nodes: • The router can make calls to or answer calls from the remote node, but the remote dial-in user calls are incoming or callback only.
  • Page 70 Reference Guide for the Model RT328 and Model RH348 ISDN Routers From the Main Menu, enter 13 to display Menu 13 - Default Dial-in Setup. When you finish filling in Menu 13 - Default Dial-in Setup, press [Enter] at the ENTER to Confirm...

  • Page 71: Table 6-1. Fields In Menu 13 - Default Dial-In Setup

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers Table 6-1. Fields in Menu 13 - Default Dial-in Setup (continued) Field Description Multiple Link Options: Max Trans Rate Enter the maximum data transfer rate between your router and the remote dial-in user in this field.

  • Page 72: Dial-In Users Setup

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers Table 6-1. Fields in Menu 13 - Default Dial-in Setup (continued) Field Description Session Options: Input Filter Sets and In these fields, you can select the filter set(s) to filter the incoming and Output Filter Sets outgoing traffic between your router and the remote dial-in user.
  • Page 73 Reference Guide for the Model RT328 and Model RH348 ISDN Routers Table 6-2 lists and describes the fields in the Edit Dial-in User menu. Table 6-2. Fields in Menu 14.1 - Edit Dial-in User Field Description User Name This field is required and used as the login name for authentication. Choose a descriptive word for login (For example, johndoe).

  • Page 75: Tcp/Ip Configuration

    Chapter 7 TCP/IP Configuration This chapter describes how to configure your Model RT328/RH348 router for TCP/IP. Depending on your particular applications, you must configure different menus. For instance, Internet access is the most common application of TCP/IP. For this application, you should configure Menu 4.

  • Page 76: Remote Node Setup

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers Remote Node Setup Chapter 5, “Remote Node Configuration,” for information about using the protocol- independent parameters on Menu 11.1 - Remote Node Profile. Use the fields described in Table 7-1 to set the protocol-dependent parameters.
  • Page 77 Reference Guide for the Model RT328 and Model RH348 ISDN Routers Table 7-2 lists and describes the fields for Menu 11.3 - Remote Node Network Layer Options. Table 7-2. Menu 11.3 Remote Node Network Layer Options Fields Field Description Rem IP Address This read-only field shows the IP address you entered for this remote node in the previous menu.

  • Page 78: Static Route Setup

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers Table 7-2. Menu 11.3 Remote Node Network Layer Options Fields (continued) Field Description RIP: This parameter determines how the router handles RIP (Routing Information RIP Direction Protocol). If set to Both (default), the router broadcasts the routing table of the router on the LAN and incorporates RIP broadcasts by other routers into its routing table.
  • Page 79 Reference Guide for the Model RT328 and Model RH348 ISDN Routers Table 7-3 lists and describes the fields for Menu 12.1 - Edit IP Static Route. Table 7-3. Edit IP Static Route Menu Fields Field Description Route Name Enter a descriptive name for this route for identification purposes only.

  • Page 81: Filter Configuration

    The Model RT328/RH348 router has default call filters that filter out administrative packets (for example, RIP packets). The router applies the default filters first and then, if applicable, applies the user-defined...

  • Page 82: Router Filter Structure

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers For incoming packets, the router applies data filters only. Packets are processed depending on whether a match is made. The router allows you to customize the filter sets that you want to use.
  • Page 83 Reference Guide for the Model RT328 and Model RH348 ISDN Routers When you press [Enter], Menu 21.1 - Filter Rules Summary is displayed. The information in this menu is read-only; the parameters of each rule that you configured for that set are displayed.

  • Page 84: Configuring A Filter Rule

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers If the filter type is GEN (generic), the abbreviations listed in Table 8-3 are used. Table 8-3. Abbreviations Used if Filter Type Is GEN Abbreviation Description Offset Length To configure a specific filter rule, select the number of the filter rule (1–6) that you want to configure and press [Enter] to display Menu 21.1.1 - TCP/IP Filter Rule.

  • Page 85: Table 8-4. Tcp/Ip Filter Rule Menu Fields

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers Table 8-4. TCP/IP Filter Rule Menu Fields Field Descriptions Active In this field, you can make the filter rule active (Yes) or make the filter rule inactive (No). IP Protocol Protocol refers to the IP-specific number of the protocol.
  • Page 86 Reference Guide for the Model RT328 and Model RH348 ISDN Routers Table 8-4. TCP/IP Filter Rule Menu Fields (continued) Field Descriptions Source (continued): Port # Comp In this field, select the comparison quantifier you want to use to compare to the value given in Source: Port #.

  • Page 87: Generic Filter Rule

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers Generic Filter Rule This section provides information about configuring the protocol-independent parameters for a generic filter rule for your router. Table 8-5 lists the fields in the menu. When you complete Menu 21.1.1 - Generic Filter Rule, press [Enter] at the Press ENTER to Confirm...

  • Page 88: Applying A Filter Set

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers Table 8-5. Generic Filter Rule Menu Fields (continued) Field Description In this field, you can determine if you want to log the results of packets attempting to pass the filter rule. These results are displayed on the System Log (see “View Error...

  • Page 89: Reducing Unnecessary Calls By Windows 95

    WINS or DNS server on the local network, using an LMHOSTS file to store addresses of local hosts, or turning off NetBIOS name resolution by DNS. A simpler method is to filter NetBIOS traffic using the filtering capabilities of your Model RT328/RH348 router. Diagnosing the Situation If you already know the source or types of packets that are causing the problem, you can proceed directly to the design of the filter.
  • Page 90 Reference Guide for the Model RT328 and Model RH348 ISDN Routers You can wait until an erroneous call is placed, then examine this packet header to determine the source and cause. The IP packet header contains information such as the next-level protocol type (for example, ICMP, TCP, UDP), source and destination addresses, and source and destination port numbers.

  • Page 91: Implementing The Filter

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers Implementing the Filter Now you can proceed to define a call filter to block the three NetBIOS service ports. The Filter Set Configuration Menu is shown in Figure 8-3.

  • Page 92: Figure 8-4. Tcp/Ip Filter Rule Menu

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers Set “Active” to Yes, and specify the IP Protocol as 17, which is the UDP protocol number (in decimal) from the Assigned Numbers RFC as described on page 8-10.

  • Page 93: Figure 8-5. Filter Rules Summary Menu

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers Define the next five rules the same way—one for each combination of the three port numbers and the two protocol types. The last rule, however, will be slightly different. For Action Not Matched, select “Forward.”...

  • Page 94: Applying The Filter

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers Applying the Filter When the filter design is finished, you must tell the router where to apply the filter. Apply it as a Call Filter in the remote node that reaches your DNS server(s) (usually your ISP node). Go to Menu 11.1, Remote Node Profile, and enter the number of the filter under “Call Filter Sets”...

  • Page 95: System Maintenance

    Chapter 9 System Maintenance The Model RT328/RH348 router provides diagnostic tools for maintenance. These diagnostic tools include displays of system status, ISDN B channel status, log and trace capabilities, and upgrades to the system software. This chapter describes the use of these tools.

  • Page 96: Table 9-2. System Maintenance Status Menu Fields

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers Table 9-2 lists the fields for Menu 24.1 - System Maintenance Status. These fields are read-only fields. Table 9-2. System Maintenance Status Menu Fields Field Description ISDN: This field displays the statistics for B1 and B2 channels. For each channel the screen...

  • Page 97: Terminal Baud Rate

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers Table 9-2. System Maintenance Status Menu Fields (continued) Field Description Country Code This field displays the one-byte country code value (in decimal notation). For example, 255 indicates North America.

  • Page 98: Log And Trace

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers Log and Trace Log and trace tools allow the user to view the error logs and trace records in order to troubleshoot any errors that may occur. The router can also generate system logs (syslogs) to send to other machines.

  • Page 99: Table 9-4. System Maintenance - Syslog And Accounting Menu Fields

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers You must configure the parameters to activate syslog (Table 9-4). Table 9-4. System Maintenance - Syslog and Accounting Menu Fields Field Command Description Active Press the space bar to toggle between The syslog option is turned on or off.

  • Page 100: Diagnostic Menu

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers Diagnostic Menu The diagnostic menu allows you to test several functions of your router. From the Main Menu, enter 24 to display Menu 24 - System Maintenance. Enter 4 to display Menu 24.4 - System Maintenance - Diagnostic.

  • Page 101: Tcp/Ip Tools

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers Figure 9-2 illustrates an example of a trace display for a successful call when using a TCP/IP protocol connection. Start dialing for node <1> ### Hit any key to continue.### Dialing chan<2>...

  • Page 102: System Tools

    Back Up Configuration Select option 5 from Menu 24 - Maintenance to back up the current configuration settings of your router onto a disk. NETGEAR highly recommends backing up your router configuration after it is functioning. The procedure for downloading varies depending on the type of terminal software used to access the router.

  • Page 103: Software Update

    Enter the command atgo to restart the router when the router displays the OK message. Note: NETGEAR recommends that you change the Manager port baud rate to 38400 before updating the software. Doing so results in an update time of 5 to 10 minutes.

  • Page 104: Call Control

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers Call Control The Model RT328/RH348 router provides call control management functions for the remote node and remote dial-in user. These functions are budget management, blacklist, and call history, which are on the Call Control menu.

  • Page 105: Call History

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers Call History The call history function displays statistics of data calls to or from up to the first 10 phone numbers seen. The following statistics are shown: • Phone number •...

  • Page 107: Troubleshooting

    Chapter 10 Troubleshooting This chapter gives information about troubleshooting your Model RT328/RH348 router. After each problem description, instructions are provided to help you diagnose and solve the problem. Basic Functioning After you turn on power to the router, the PWR LED lights. If the PWR LED does not light, refer to the next section, “LEDS.”...

  • Page 108: Test Led

    If you are connecting a Model RT328 router to a normal (MDI-X) hub port, use the white straight-through cable. Workstations should be connected to the Model RH348 router hub ports using straight-through cables.

  • Page 109: Isdn Initialization Or Reset

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers The following two sections explain how to examine the ISDN initialization results and how to perform an ISDN loopback test to verify operation with the phone company. ISDN Initialization or Reset...

  • Page 110: Troubleshooting A Tcp/Ip Network Using A Ping Utility

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers Troubleshooting a TCP/IP Network Using a Ping Utility Most TCP/IP terminal devices and routers contain a ping utility that sends an echo request packet to the designated device. The device then responds with an echo reply. Troubleshooting a TCP/IP network is made very easy by using the ping utility in the built-in Manager interface (Menu 24.4)

  • Page 111: Testing The Path From Your Pc To A Remote Device

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers Testing the Path from Your PC to a Remote Device After verifying that the LAN path works correctly, test the path from your PC to a remote device. From the Windows run menu, type PING -n 10 followed by the IP address of the remote device you are calling.

  • Page 112: Troubleshooting A Remote User Connection

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers • Verify your IP address in Menu 3.2 and verify the following parameters in Menu 11: – My Login – My Password – Rem IP Addr If the call is connected but quickly terminated, it indicates the possibility of a negotiation problem.

  • Page 113: Troubleshooting The Manager Interface

    FirstGear was installed. It is also available on the NETGEAR Web site. This procedure will restore the Manager password to 1234 and will set the Manager baud rate to 9600. This recovery method is for cases when the Manager password is not known.
  • Page 114 Reference Guide for the Model RT328 and Model RH348 ISDN Routers To upload romfile0, you must enter the BootModule debug mode with a serial connection to the Manager port: While monitoring the serial port, turn on the router. Wait for the following message: Press Any key to enter Debug Mode within 3 seconds...

  • Page 115: Technical Specifications

    Appendix A Technical Specifications This appendix provides technical specifications for the Model RT328/RH348 router. General Specification Network Protocol and Standards Compatibility WAN Protocols: PPP, Multilink PPP, BACP Data and Routing Protocols: TCP/IP, RIP-1, RIP-2, DHCP ISDN Standard: National ISDN-1 (North America) AT&T 5ESS Custom (North America)
  • Page 116 Reference Guide for the Model RT328 and Model RH348 ISDN Routers Power Adapter North America: 120V, 60 Hz, input United Kingdom: 240V, 50 Hz, input Europe: 230V, 50 Hz, input Japan: 100V, 50/60 Hz, input All regions (output): 16 V AC @ 1A output, 22W maximum...

  • Page 117: Appendix B Ordering Isdn Lines

    Use the information in this section to order your ISDN line. If you have already installed your ISDN line, you can check the following information to make sure that you can use all the features of your Model RT328/RH348 router. Ordering the Line...

  • Page 118: Provisioning For Switches In North America

    Europe, Asia Provisioning for Switches in North America For North America, the Model RT328/RH348 router has been approved by Bellcore and has the IOC (ISDN Ordering Code) “S” Capability, EZ-ISDN1. Ordering your ISDN line in this configuration provides basic data and voice service. If you wish to use any advanced calling features such as call waiting, you need to order a higher level of service such as IOC “U.”...

  • Page 119: Table B-2. Provisioning Features And Settings For National Isdn-1 Services

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers Table B-2. Provisioning Features and Settings for National ISDN-1 Services Provisioning Feature Setting Term Type Circuit Switched Voice (CSV) CSV Additional Call Offering (ACO) Unrestricted CSV limit CSV Notification Busy (NB) limit...

  • Page 120: Provisioning For Northern Telecom Switch

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers Table B-4 lists the provisioning features and settings for Point-to-Point ISDN services when using the AT&T 5ESS switch. Table B-4. Provisioning Features and Settings for Point-to-Point Service Provisioning Feature...

  • Page 121: Table B-5. Provisioning Features And Settings For National Isdn-1 Service

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers Table B-5. Provisioning Features and Settings for National ISDN-1 Service Provisioning Feature Setting Signaling Functional Protocol Version Control (PVC) 2 (National ISDN-1) TEI assignment Dynamic Maximum number of keys (maxkeys)

  • Page 123: Appendix Cisdn Clearing Codes

    Appendix C ISDN Clearing Codes This appendix provides information about the ISDN call clearing codes returned by the network when you use your Model RT328/RH348 router. These codes may vary depending on your service provider. Clearing Codes Table C-1 lists the ISDN call clearing codes.
  • Page 124 Reference Guide for the Model RT328 and Model RH348 ISDN Routers Table C-1. ISDN Call Clearing Codes (continued) Reason Description Nonselected user clearing Destination out of order Invalid number format Facility rejected Response to status inquiry Normal, unspecified No circuit/channel not available...

  • Page 125: Using The Protocol Analyzer And Trace Tools

    Many router connection problems can be diagnosed using the ISDN and Remote Node connection tests in the Internal Manager Interface of the Model RT328/RH348 router. These tests can be found in Menu 24.4, System Maintenance (Diagnostic). Detailed information about using this menu can be found in Chapter 9, “System...

  • Page 126: Isdn Protocol Analyzer

    An ISDN call connection failure can be diagnosed using the ISDN embedded protocol analyzer (EPA) of the Model RT328/RH348 router. The EPA executes from the command line interface within the internal Manager. You must first connect to the router using the serial Manager port.
  • Page 127 Reference Guide for the Model RT328 and Model RH348 ISDN Routers ----Start Isdn Protocol Analyzer Display----- Start of buffer 00:00:11.52 4 bytes LAPD D C SAPI=0 TEI=97 RR P/F=1 NR=6 00:00:11.53 4 bytes LAPD D R SAPI=0 TEI=97 RR P/F=1 NR=7 00:00:12.62 38 bytes LAPD D...

  • Page 128: Figure D-1. Isdn Protocol Analyzer Display

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers 1 00110100 INFORMATION ELEMENT : SIGNAL 00000001 IE length : 1 octets 00000001 Signal value : ring back tone on 00:00:13.42 4 bytes LAPD R SAPI=0 TEI=97 RR P/F=0 NR=9 00:00:13.44...

  • Page 129: Packet Tracing

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers Packet Tracing You can diagnose PPP connection failures using the packet trace feature of the Model RT328/ RH348 router. To invoke the packet trace: Access the internal Manager of the router using a serial or Telnet terminal connection.
  • Page 130 Reference Guide for the Model RT328 and Model RH348 ISDN Routers rt328> sys trcl cl Program Trace Switch OFF rt328> sys trcl sw on rt328> sys trcp sw on rt328> isdn dial 1 Start dialing for node<1> Dialing chan<1> phone(last 9-digit):40201 ### Hit any key to continue.###...

  • Page 131: Figure D-2. Trace Screen

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers fe403e 2d7 PNET ppp BACP negotiation started fe4048 0 POU1 ebp=4ac10,seqNum=22 PPP1-XMIT:24 len:12 0000: 80 71 01 13 00 0a 01 06 00 00 00 01 fe4048 0 PNET ebp=4ac40,seqNum=23 PPP1-RECV:24 len:12...

  • Page 132: Packet Trace Display Format

    Reference Guide for the Model RT328 and Model RH348 ISDN Routers Packet Trace Display Format Data packets are time stamped and displayed up to the first 32 bytes. PPP message packets are summarized, but their contents are not displayed. The format of the packet trace display is shown...

  • Page 133: Glossary

    Glossary 10BASE-T IEEE 802.3 specification for 10 Mbps Ethernet over twisted pair wiring. See attachment unit interface. attachment unit A 15-pin connector for attaching an Ethernet transceiver. interface B channel A 64 Kbps “Bearer” channel used to carry voice or data over the ISDN network.
  • Page 134 Reference Guide for the Model RT328 ISDN Router D channel A 16 Kbps channel used for signaling between the ISDN interface and the ISDN network. This channel controls call setup and tear down. DHCP See Dynamic Host Configuration Protocol. DOSBS See Data Over Speech Bearer Service.
  • Page 135 Reference Guide for the Model RT328 ISDN Router See Maximum Receive Unit. See Multiple Subscriber Numbering. masquerading A technique by which several hosts share a single IP address for access to the Internet. This process is an extension of Network Address Translator (NAT). See also Network Address Translator.
  • Page 136 Reference Guide for the Model RT328 ISDN Router See Point-to-Point Protocol. PSTN Public Switched Telephone Network. Password A method of enabling security on PPP links. When the link is established, Authentication a password is sent by the caller. See Challenge Handshake Authentication Protocol Protocol.

  • Page 137: Index

    Index Call Direction field, Remote Node Profile A/B Adapter 2 field, ISDN Setup menu, 3-9 menu, 5-2 A/B Adapter field, ISDN Setup menu, 3-9 Callback Budget Management field, Default accounting function, 9-4 Dial-in Setup, 6-3 Action Matched/Not Matched field Callback field, Edit Dial-in User, 6-5 Generic Filter Rule menu, 8-8 callback function, 1-5 TCP/IP Filter Rule menu, 8-6...
  • Page 138 Filter Rules Summary menu, 8-3, 8-7 filter type, Generic IP, 8-3 data over voice bearer service call, 3-7, 4-3, 5-3 filtering process, example, 8-1 Default Dial-in Setup menu, 6-2 filters, configuring, 8-1 Destination field, TCP/IP Filter Rule menu, 8-5 FirstGear Destination IP Address field, Edit IP Static Route description, 1-2 menu, 7-5...
  • Page 139 IP configuration, by DHCP, 1-15 Log field Generic Filter Rule menu, 8-8 IP Protocol field, TCP/IP Filter Rule menu, 8-5 TCP/IP Filter Rule menu, 8-6 IP Source Route field, TCP/IP Filter Rule menu, IP Subnet Mask field, Edit IP Static Route menu, Macintosh, using to configure, 1-5, 2-9, 3-1 manager interface ISDN...
  • Page 140 Metric field Password field, Edit Dial-in User, 6-5 Edit IP Static Route menu, 7-5 PC, using to configure, 1-5, 2-9, 3-1 Remote Node Network Layer Options menu, Phone # field, Edit Dial-in User, 6-5 port MGR port, 2-7 analog voice, 1-3 mode, command interpreter, 9-9 Ethernet, 1-3 More field...
  • Page 141 Rem Node Name field, Remote Node Profile Subaddress field, ISDN Setup menu, 3-9 menu, 5-2 subnet addressing, 1-10 Rem Subnet Mask field, Remote Node Network Switch Type field, ISDN Setup menu Layer Options, 7-3 DSS1, 3-9 remote dial-in users, 6-1 North America, 3-7 remote node Syslog and Accounting menu, 9-4...
  • Page 142 UNIX system, using to configure, 1-5, 2-9, 3-1 warranty, 1-3 User Name field, Edit Dial-in User, 6-5 World Wide Web, iii Value field, Generic Filter Rule menu, 8-7 XMODEM Protocol, 9-8 Index...

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