Router User Manual

ManualsBrandsPanasonic ManualsNetwork Router8000

Nortel Secure Router 8000 Series

Troubleshooting - VAS Contents

Issue 01.01 (30 March 2009)

Nortel Networks Inc.

iii

4.1.1 NAT attributes ...................................................................................................................................4-2

4.1.2 NAT modes........................................................................................................................................4-3

4.1.3 Special protocols supported by the address translation .....................................................................4-3

4.2 Troubleshooting NAT Troubleshooting .......................................................................................................4-4

4.2.1 Typical Networking...........................................................................................................................4-4

4.2.2 Configuration notes...........................................................................................................................4-5

4.2.3 Troubleshooting flowchart ................................................................................................................4-6

4.2.4 Troubleshooting procedures ..............................................................................................................4-8

4.3 Troubleshooting cases .................................................................................................................................4-9

4.3.1 Internal Network Cannot Successfully Ping the External Network After NAT Is Configured on the

Router.........................................................................................................................................................4-9

4.4 FAQs..........................................................................................................................................................4-10

4.5 Diagnostic tools.........................................................................................................................................4-11

4.5.1 Display commands ..........................................................................................................................4-11

4.5.2 Debugging commands.....................................................................................................................4-19

Index ................................................................................................................................................ i-1