...failed while running debug ip packet on the 2610:
Mar 1 02:36:51.996: IP: s=192.168.1.254 (local), d=x.x.x.x (Ethernet0/0), len 44, sending
*Mar 1 02:36:51.996: IP: s=192.168.1.254 (local), d=x.x.x.x (Ethernet0/0), len 44, encapsulation failed
Can anyone point me in the right direction?