I am facing this problem in one of my customers network.Two Core Switch Catalyst 6513 is having FWSM and ACE Module in failover mode. On ACE one server farm is created. VIP of this server farm is reachable from FWSM context as it is laying on inside interface of FWSM but not rechable from any network behind outside interface of FWSM. While real servers in same subnet are reachable as ACE context is in bridge mode.
Looking forward for your valuable suggestions on the same.
I am open if you need further diagram and config on the same.
This document explains the procedures you can use in order to resolve problems with the Firewall Service Module (FWSM) failover configuration.