Problem with VPN passthrough with ASA

Unanswered Question
Aug 20th, 2007

We have an ASA running 7.2(2) that one VPN tunnel to a Cisco device on the remote end connects but will not pass traffic. I'm unsure of the specific device as we don't maintain it, but we do use the Cisco VPN client. The interesting thing is that we connect to multiple other Cisco VPN servers (concentrator, PIXes and ASAs) without any problems. This is a recent ASA installation, and the old firewall (a Netgear) allowed us to connect with no problems. We can put the old Netgear back in place and the VPN connects fine. We can also VPN into this network from other locations, so we know it is working. I'm at a loss as to what to try next. Any ideas? I've tried a static one-to-one NAT translation, and "permit isa nat-t" is in place (but it won't function with the passthrough as I understand it) but the VPN still won't pass traffic. Any ideas?

Thank you.

I have this problem too.
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bwilmoth Fri, 08/24/2007 - 13:27

VPN passthorugh in ASA is by default enabed. The reason for your problem could be some other mis- configuration which blocks the IPSec traffic to go via ASA.

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