I have an ASA 5505 that I'm trying to get a tunnel up with a 2800 series router. The tunnels get established, but the ASA side is encapsulating and not decapsulating traffic and I'm not able to pass traffic.
I have the following:
WinXP host (10.125.123.15)->(insideASA:10.125.1231)(outsideASA:192.168.2.2)->(outside2800:192.168.2.1)(inside2800:192.168.5.1)->Cisco2500(no iprouting: 192.168.5.2(def. gw 192.168.5.1)
I'm using nat on the 2800 for the 192.168.5.0/24 subnet. I can ping from the 2500 to the ASA, and I'm able to get a translation on the 2800 table. I can't ping the 10.125.123.0/24 side from the 192.168.5.0/24 side of the connection though. The tunnels don't come up if I ping from the 192.168.5.0 side of the connection, but they come up if I ping from the 10.125.123.0/24 side of the connection.
I still can't get replies though. From the 2500 (no ip routing), I get unreachables (U.U.U) when ping the 10.125.123.0/24 subnet, which should be bringing the tunnels up.
My config is attached.