Diagnostic Commands and Tools

To set up debugging for authentication troubleshooting, follow these steps:

Step 1.

Browse to Configuration > System > Events > General, and check Save Log on Wrap.

Step 2.

To configure a class to monitor in the logs, under Configuration > System > Events > Classes > Add, select a class name, make sure the class is enabled, and set severity to log at 1-13 (to capture all events). You can set this a bit lower (1-9 is sufficient in most cases), if you want less verbosity. If you are using a syslog server and would like the debugs to go there for collection, you can set the syslog value at 1-13. The default level is 1-5, which might not indicate all the events leading to an error or problem.

Step 3.

For authentication troubleshooting, follow Step 2 for classes: AUTH, AUTHDBG, and AUTHDECODE. It might also be beneficial to see IPsec-related messages, and IPSEC, IPSECDBG, and IPSECDECODE classes.

Step 4.

To view logs while events are occurring, go to Monitoring > Live Event Log.

Step 5.

To view logs that were generated after the event, either go to Administration > File Management > Files to view older log files (for example, after a crash) or go to Monitoring > Filterable Event Log.

Step 6.

To scroll though all the log events on one page, it is better to click on Get Log, under Monitoring > Filterable Event Log. Also, to move the log off the VPN 3000 Concentrator for off-line analysis, press Ctrl+A, and Ctrl+C on the keyboard to copy the log from the "Get Log" popup window and paste it with Ctrl+V into a notepad.

Cisco Network Security Troubleshooting Handbook
Cisco Network Security Troubleshooting Handbook
ISBN: 1587051893
EAN: 2147483647
Year: 2006
Pages: 190
Authors: Mynul Hoda

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