I am facing a slight dilemma and thought I would see if I could get a weigh in from the experts. I have a building complex that each area is currently supplied internet by an individual internet connection at each site. Likewise, each site has it's own network segment so they can be VPN'd together. For Example, site 1 IP 192.168.55.x, site 2 IP: 192.168.65.x ect. I have a project going to connect all sites together via microwave wireless forming a single LAN network.
Moving forward I would like to maintain the IP scheme for clarity on where a device is located by IP however I want to leverage the fact that they are all on a single LAN.
Option 1: open up the subnet so the networks can talk to each other without routers.
Option2: Place a routing device at each location to handle the routing.
Obviously, there are positives and negatives to both so I wanted to see if anyone has any really strong argument for one over another.