PIX 515E (7.0.1) - problem with the VPN connection between inside and outside

Hello

I ve creates a VLAN on the pix.

In this VLAN, users are allowed to connect only to the Internet. Everything is fine, but when trying to connect with his VPN Client to their company, it has problems... (Outside traffic flow, but no traffic came back.)

Is the only solution for this problem to create a Pool of Nat with public ip addresses, one to one mapping, or is there another solution with a public IP address (NAT on PAT) possible for this problem?

Thanks for your replies.

D.

The problem is that the esp is an IP Protocol, so PAT will not work in this scenario. When the return traffic returns to pix he doesn't know how to get to the inside host. The only way to do this is by adding a static nat (1 to 1 mapping) and create a rule to allow esp. Is what type of vpn client? Microsoft vpn? Cisco vpn? If cisco VPN, perhaps, they can use NAT - T on the vpn that overcomes the question PAT by encapsulating ipsec within UDP packets. You need to talk to the admin VPN and itself it allow.

-kevin

Tags: Cisco Security

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