VPN with loopback

[johutchins]

Hi all,

I have a 7206 router that I am currently using VPN with. The tunnels terminate to the serial interface. I would like to home the tunnels to a loopback interface as I have my own addresses and this will save me some headaches in the future if I change ISPs.

My question is, is there an easy way to migrate these tunnels one by one to the loopback or is it an all or nothing change to the new address ?

Thanks in advance.

--Jon

[gfullage]

It's pretty much an all-or-nothing change. In the router you have to do:

> crypto map local-interface loopback0

which is a global command and will make the router start sourcing all IPSec packets from the loopback IP address. At the same time you have to change all your peers to point to this loopback address.