Hi All,
A client recently migrated their enterprise router from 7206vxr to 7604. They had GRE tunnels on the 7206 but when they finished the migration, the GRE wasn't working on the 7604. although the tunnel was up, most of their application could not be assessed. When the GRE was down, the applications were accessible. Does it have to do with the 7604 supporting IPSEC GRE
and not GRE tunnel