I have two 3620 routers used for internal LAN segments routing. Each of my 3620 contains 8 Ethernet ports and each port connected to a different segment of network (hub).
If the two routers are connected back-to-back via its ethernet port, so the for the inter routers routing, do I need to use any routing protocols ? If yes,which one to use ? (e.g. OSPF,RIP or IGRP).
In setting up the ACL, can configure the communication in only one direction (i.e Server2 can communicate with Server1 but server1 cannot communicate with server2) ?
Please help out