NETGEAR RT210, RT211 Understanding the ISDN Clearing Codes

Reference Guide for the Model RT210/RT211 ISDN Routers

5-2 Troubleshooting

The Trace Window cannot be accessed by more than one “manager” (built-in interface) at a time.

An example of multiple accessing is connecting at the same time by a serial connection and by

Telnet, or connecting at the same time with two Telnet calls. When you disconnect from the

built-in interface, make sure that the Window is not active, especially when you have a remotely

accessed Trace Window. Your router tries to forward the packets to the unit that originally accessed

the Trace Window.

Understanding the ISDN Clearing Codes

The ISDN call clearing codes that are returned by the network are listed in Table 5-1. These codes

vary depending on your service provider.

Table 5-1. ISDN clearing codes

Reason Description

0 Undeﬁned

1 Unallocated (Unassigned number)

2 No route speciﬁed transit network

3 No route to destination

4 Channel unacceptable

6 Channel unacceptable

7 Call awarded and being delivered in an established channel

16 Normal call clearing

17 User busy

18 No user responding

19 No answer from user (user alerted)

21 Call rejected

22 Number changed

26 Nonselected user clearing

27 Destination out of order

28 Invalid number format

29 Facility rejected

30 Response to status enquiry

31 Normal, unspeciﬁed

34 No circuit, channel not available

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