viii Contents
Chapter 5
Troubleshooting
Using the Trace Window to Display System Messages ..................................................5-1
Understanding the ISDN Clearing Codes .......................................................................5-2
Troubleshooting Your ISDN Line .....................................................................................5-4
Using the Ping Utility to Troubleshoot a TCP/IP Network ...............................................5-5
Testing the LAN Path to Your Router ........................................................................5-5
Testing the Path from Your Router to a Remote Device ...........................................5-6
Testing the Full Path from Your PC to a Remote Device ..........................................5-8
Testing the Voice Port .....................................................................................................5-8
Appendix A
Technical Speciļ¬cations
General Speciļ¬cations ................................................................................................... A-1
Appendix B
TCP/IP Routing
IP Addressing ................................................................................................................ B-1
Subnet Addressing ........................................................................................................ B-3
Address Resolution ....................................................................................................... B-4
Routing IP Over ISDN ................................................................................................... B-5
Connecting to Other Routers ......................................................................................... B-6
Appendix C
Ordering ISDN Lines
Ordering an ISDN Line .................................................................................................. C-1
Connecting Devices to a Basic Rate ISDN ....................................................................C-1
Connecting to ISDN in North America ........................................................................... C-2
Directory Numbers and SPIDs ................................................................................ C-2
Switch Types .....................................................................................................C-3
National ISDN Service Packages ............................................................................C-4
Hunt Groups ..................................................................................................... C-5
Long Distance Service ......................................................................................C-5
Connecting to ISDN in Europe ...................................................................................... C-6
Line Ordering Summary for North American Users ....................................................... C-6
Line Ordering Summary for European Users ................................................................ C-7
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