I got another issue. The network 10.100.2.0/24 belongs to VoIP servers, I've been able to configure an IP Phone successfully, It has registered to CUCM and rings but voice doesn't pass through the VPN Tunnel. Do you have an idea to solve this issue?...

I added the router and things worked well. I removed crypto isakmp keepalive on the router and pfs on both devices because I got the MM_NO_STATE - ACTIVE (Deleted) on router. I'm happy now. Thanks so much for your support,

Thanks for your response, I think the issue will be solved if I find a way to get out the exampted NAT traffic through  vpnif interface rather than the outside one. For that case, the Phase1 of packet-tracer will be Phase: 1Type: ROUTE-LOOKUPSubty...

Hello, I spent two days trying to setup a site-to-site VPN between an ASA 5520 ver 8.2 and a Cisco Router. Let notice that the ASA has two outside interfaces and connect to a same public network but but one is connected to checkpoint (outside which ...