VPN Client user cannot connect to the PIX Firewall


Wed, 07/22/2009 - 19:27
Jun 18th, 2009

Core issue

The PIX Firewall needs to be configured to communicate with a TACACS+ or RADIUS server.


To resolve this issue, perform these steps:

  1. Configure Authentication, Authorization and Accounting (AAA) on the PIX Firewall and AAA server.  

  2. Re-enable extended authentication (Xauth).  

  3. Retry the client VPN connection.

For more information, refer to these documents:

PIX Software Version

PIX version 5.x

PIX version 6.x

VPN Tunnel Initialization

Cannot pass phase I (Internet Security Association and Key Management Protocol [ISAKMP])



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