I have an address zone (let's say
18.104.22.168/16) and I want to subnet it optimally using VLSM. I have a number of VLANs, each with a minimum number of needed addresses, and a couple of router-to-router connections.
How many addresses are needed for a router-to-router connection (that is considered as a subnetwork)?
Is it four? One for each router, the broadcast address and the network address?