I have this network:
In this case net1 and 2 are equal cost paths and thus packets can go via either. However, RTR1 sends the SYN of a TCP flow over NET1, then all other packets for the flow over NET2. Where will the return traffic come back via? NET1 or NET2. Is there a feature on IOS which can make RTR2 send packets back to the MAC where they actually arrived from and not via the routing table?