NETGEAR RT210, RT211 - page 90

Reference Guide for the Model RT210/RT211 ISDN Routers

B-2 TCP/IP Routing

Figure B-1. Three main address classes

Class A addresses can have up to 16,777,214 hosts on a single network. They use an 8 bit network

number and a 24 bit node number. Class A addresses are in the range 001.xxx.xxx.xxx to

126.xxx.xxx.xxx.

Class B addresses can have up to 65,354 hosts on a network. A class B address uses a 16 bit

network number and a 16 bit node number. Class B addresses are in the range 128.001.xxx.xxx to

191.254.xxx.xxx.

Class C addresses can have 254 hosts on a network. Class C addresses use 24 bits for the network

address and 8 bits for the node. They are in the range 192.000.001.xxx to 223.255.254.xxx.

Class D addresses are used for multicasts (messages sent to many hosts). Class D addresses are in

the range 224.000.000.000 to 239.255.255.255.

Class E addresses are for experimental use for now.

This addressing structure allows IP to uniquely identify each physical network and each node on

each physical network.

7261

Class A

Network Node

Class B

Class C

Network Node

Network Node

NGRRT210.BK Page 2 Friday, October 17, 1997 2:37 PM

Contents

Main Page Page Page Contents Page Page Page Page Page Figures Page Tables Page Preface Audience Purpose Conventions Use of Enter, Type, and Press Special Message Formats Related Publication Customer Support World Wide Web Chapter 1 Introduction Features About the Router Key Features ISDN Support Management Support TCP/IP Support Multilink PPP Support Planning Considerations Basic Concepts Page Connecting to ISDN Using Subaddressing and Multiple Subscriber Numbering Using PPP to Connect to Other Devices Using TCP/IP Dening Security Levels Chapter 2 Installing and Connecting Package Contents Site Preparation Checklists ISDN Services Checklist Network Checklist Installing and Connecting the Router Page 2-6 Installing and Connecting Figure 2-1. Router connections Connecting to ISDN U Interface S/T Interface Installing and Connecting 2-9 Figure 2-2. Connecting the NETGEAR Model RT210 router to ISDN in North America Connecting to a Hub Power Connection Using the FirstGear ISDN Router Conguration Utility Connecting Through a Serial Port or a Telnet Connection Page Page Chapter 3 Conguring the Router Conguration Methods 3-2 Configuring the Router Using the Commands in the Interface Table 3-1. Key character commands Table 3-2. Task commands Page Using the Built-in Interface Quick Setup Page Page Using the Built-In Interface Basic Setup Naming the Router Entering the Network Address Conguring the ISDN Line Connecting to Another NETGEAR or Bay Networks Nautica Router Connecting to a Router Using Point-to-Point Protocol Page Verifying Autocall Operation Operating with a Single IP Address Caller Line Identication (CLI) Obtaining Additional Bandwidth Subaddressing and Multiple Subscriber Numbering (MSN) Page Chapter 4 Menus and Commands Using the Menus Page Menus and Commands 4-3 Figure 4-2 illustrates the built-in interface menu hierarchy. Figure 4-2. Built-in interface menu hierarchy Using the CONFIG Command Using the Update System Parameters Form Using the Congure Paths Menu Page Page Page Page Using the Congure Ports Menu Page Using the Congure IP Routes Menu Using the Update PPP Custom Parameters Menu Page Using the STATS Command Viewing the Status/Statistics Menu Page Page Page Using the TELNET Command Using the PING Command Using the QUIT Command Page Chapter 5 Troubleshooting Using the Trace Window to Display System Messages Understanding the ISDN Clearing Codes Troubleshooting 5-3 Table 5-2. ISDN internal clearing codes Table 5-1. ISDN clearing codes (continued) Troubleshooting Your ISDN Line Using the Ping Utility to Troubleshoot a TCP/IP Network Testing the LAN Path to Your Router Testing the Path from Your Router to a Remote Device Page Testing the Full Path from Your PC to a Remote Device Testing the Voice Port Appendix A Technical Specications General Specications Page Appendix B TCP/IP Routing IP Addressing Page Subnet Addressing Address Resolution Routing IP Over ISDN Connecting to Other Routers Appendix C Ordering ISDN Lines Ordering an ISDN Line Connecting Devices to a Basic Rate ISDN Connecting to ISDN in North America Directory Numbers and SPIDs Page National ISDN Service Packages Page Connecting to ISDN in Europe Line Ordering Summary for North American Users Line Ordering Summary for European Users Page Appendix D Upgrading Software Obtaining the Latest Version of Software Upgrading Through a PC Upgrading Through a Remote Router Upgrading the Terminal Adapter Code Appendix E PPP Authentication Proles Determining PPP Proles E-2 PPP Authentication Profiles Table E-1. PPP authentication proles Table E-2. PPP authentication proles for NETGEAR, Nautica, and Bay products PPP Authentication Profiles E-3 Table E-3. PPP custom authentication proles for NETGEAR, Nautica, and Bay products E-4 PPP Authentication Profiles Table E-4. PPP authentication proles for other manufacturers Glossary Page Page Page Index A B C D E F H I L M N P R S T U V W