Router User Manual

Nortel Secure Router 8000 Series
Troubleshooting - VAS Figures
Issue 01.01 (30 March 2009)
Nortel Networks Inc.
v
Figures
Figure 1-1 RADIUS message structure ............................................................................................................1-2
Figure 1-2 Attribute format...............................................................................................................................1-3
Figure 1-3 Networking diagram of local authentication...................................................................................1-7
Figure 1-4 Troubleshooting flowchart of local user authentication..................................................................1-9
Figure 1-5 Networking diagram of RADIUS authentication..........................................................................1-11
Figure 1-6 Troubleshooting flowchart of RADIUS authentication.................................................................1-14
Figure 1-7 Networking diagram of HWTACAS authentication .....................................................................1-17
Figure 1-8 Troubleshooting flowchart of HWTACACS authentication .........................................................1-21
Figure 1-9 Networking diagram of RADIUS authentication..........................................................................1-23
Figure 1-10 Networking diagram of HWTACAS authentication ...................................................................1-25
Figure 2-1 Format of the transport mode packets.............................................................................................2-4
Figure 2-2 Format of the tunnel mode packets.................................................................................................2-4
Figure 2-3 Networking diagram of the manual IPSec SA setup .......................................................................2-6
Figure 2-4 Troubleshooting flowchart of IPSec SA manual setup..................................................................2-11
Figure 2-5 Networking diagram of setting up ISAKMP IPSec ......................................................................2-15
Figure 2-6 Troubleshooting flowchart of SA setup in Phase 1 .......................................................................2-20
Figure 2-7 Troubleshooting flowchart of SA setup in Phase 2 .......................................................................2-21
Figure 2-8 Networking diagram of setting up SA using an IPSec policy template.........................................2-25
Figure 2-9 Troubleshooting flowchart of setting up IPSec SA using an IPSec policy template.....................2-30
Figure 2-10 Networking diagram of IPSec NAT ............................................................................................2-33
Figure 2-11 Troubleshooting flowchart of NAT traversal in IPSec ................................................................2-40
Figure 2-12 Networking diagram of configuring IPSec .................................................................................2-43
Figure 2-13 Troubleshooting flowchart of GRE over IPSec...........................................................................2-46
Figure 2-14 Networking diagram of IPSec setup ...........................................................................................2-48
Figure 3-1 Networking of the firewall..............................................................................................................3-3
Figure 3-2 Diagnostic flowchart for faults on the firewall ...............................................................................3-4