Backup Tunnel VPN Firewall even

I have 2 VPN tunnels on the same worm 6.3 pix firewall (5) tunnels goes to the remote site. On the remote site, there are 2 internet circuits has a primary and a secondary. The primary circuit goes to one tunnel on my firewall and secondary goes to another tunnel on my firewall that only appears when the primary circuit breaks down.

We notice that when the primary circuit falls backup on the pix firewall tunnel is up but the traffic stops flowing after a few minutes and I need to erase the crypto isakmp before traffic starts to flow again.

Am I missing something with my setups when VPN is similar to this type of installation?

You must configure the tunnel dpd so that once the main tunnel breaks down the PIX must erase the SA for this tunnel.

now based on the code that you have 6.3 (5), keepalive feature is not available

http://www.Cisco.com/en/us/docs/security/PIX/pix63/command/reference/c.html#wp1034654

Thank you

-Syed

Tags: Cisco Security

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