I need to create a Ipsec VPN site to site between an ASA 8.x and a generic router with a non-static IP address. I saw a document about creating a similar infrasturcture between two PIX (one with static IP and one with Dynamic IP) with 7.x version. Can someone help me?
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Hope this link helps:
Basically the ASA has a static IP and the remote device has a dynamic IP.
You configure a normal site-to-site tunnel on the remote end, but on the ASA side configure a dynamic tunnel to accept the connection from the remote device.
This scenario will work, the only restriction is the tunnel will only be able to initiate from the remote end device (in the example above an IOS router).