Configuring dynamic destintation IP addres in a GRE tunnel?

[emiliano]

Hello everyone. I have an issue here..

I wonder if someone knows wether is it possible to configure a dynamic IP address at the "destination command" into a tunnel interface.

Supose we are trying to bring up a VPN connection, so at one side we have a static public address configured in the interface that´s connected to the ISP (let´s call it "interface A" ), and also a tunnel interface whose source address is the same as the interface "A".

At the other side we have PPPoE talking with another ISP who assigns a dynamic IP public address to our router (to the interface dialer 1). Also, we have configured a tunnel interface in this router whose destination address is the one of the interface "A" of the router at the ohter side, and whose source address is the one asigned to the interface "dialer 1".

Is this possible to do? any commands?

And what about if we add encryption to this example?

Thanks,

Emiliano

[edadios]

you can do this with ipsec, dynamic to static lan to lan, I have not tried the gre behind it, but you can try.

http://www.cisco.com/warp/public/707/ios_804.html .

hope it helps.