Aside from with VLAN trunking where you use sub-interfaces, has anyone ever implemented a router on a stick design where traffic is routed back through the port it entered the router on?
I have 2 x ASA's on my LAN and want to route traffic to different networks through different ASA's. My servers currently have static routes telling them which ASA to take to reach the network intended. Is it possible to add a router onto the LAN, make it the default gateway for the servers and then put static routes on the router identidying which ASA data should go through to reach a specific network? Is that bad design? Do I need to introduce a new network between the router and the ASA's??