if I have two routers with serial ports can the following exist and be able to talk to each other. or must two routers always connect to each other within the same subnet?
router a s/1 192.168.7.1 255.255.255.252
router b s/1 192.168.8.1 255.255.255.252
router a s/1 192.168.7.1 255.255.255.252
router b s/1 192.168.8.1 255.255.255.252