In location (A), I have a M.T. router (172.21.69.180) that is connected to a modem that has address 172.21.69.1 and runs a DHCP server
I have created a VPN connection with location (B) that has a LAN address 192.168.1.1/24 and everything works fine. I wish to do the same with 2 other locations that also have a LAN 192.168.1.1/24 and I cannot change that.
I was thinking to run in location (C) a DHCP client on M.Ts. ethernet port to get the address from the modem and then have a separate LAN range with DHCP server running on the M.T's.WIFI e.g. 192.168.10.0/24 and have the 2 subnets reach each other with static routes.