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PIX 501 Drops VPN

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mattlau

IS-IT--Management
Dec 9, 2008
29
US
My new 501 is up and running, but I seem to be experiencing some trouble with the VPN. I use the Cisco VPN Client (tried 5.0.01, 5.0.03, 5.0.04) with Vista Ultimate 32-bit. I use IPsec with group authentication and split tunneling.

At seemingly random intervals, my users or I experience the following problems:

1) Error message: "Secure VPN Connection terminated locally by the Client. Reason 412: The remote peer is no longer responding."

2) No error message, the lock icon in the Windows Notification Area still appears locked (connected), but I cannot access network resources and must reconnect,

3) Error relating to virtual network adapter every so often when connected (one of my users mentioned it but I haven't experienced it)

Is there something wrong with my PIX? Is something not configured properly? I could copy/paste the entire firewall configuration text if that helps.
 
RESOLVED!

Used isakmp nat-t in the command line for the PIX to enable NAT traversal. My users haven't been dropped since I enabled it. I assume that the NAT on their home routers was butchering the IPsec connection.
 
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