GRE over IPSEC crypto-map

Hiya Experts,

I'm wondering what's the difference between adding crypto-map onto
1) WAN interface
2) LAN interface
3) Tunnel interface

OR

4) adding the "tunnel protection" command onto the tunnel interface itself

I notice that with option 1,2 and obviously 4 I'm unable to define
interesting traffic from my host to destination loopback address.

Cheers.

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Received on Tue May 31 2011 - 20:14:12 ART