I have a confusion regarding subnet routing.
2 branches connected to main site via private wireless network each with own gateway.
Branch 1: 172.16.10.x
Branch 2: 172.16.20.x
1. What mask should be used? 255.255.0.0 or 255.255.255.0? What differences other than host limitation would it make?
2. What routes should be entered into main site router (2801) based on the above?
3. On a separate note, say I choose a mask of 255.255.0.0. What would routing decision would the main site router take for a traffic to destination 172.16.10.1?