Many years ago, pre-VPN's, I believe I remember seeing a Router to Router 'LAN to LAN Route' over the internet, allowing Subnet A, to access Subnet B (*Insecurely*), with each router sitting behind its own internet connection. Naturally since then, VPN's are easy to setup, however in my case, my two public addresses are actually still within my managed network, and as such wish to actually configure this using my Cisco 1700 Series routers, without having to purchase new equipment - I just can't remember how it was done.
For further explanation:
SUBNET A -> Cisco 1700 Router A -> INTERNET <- Cisco 1700 Router B <- SUBNET B
For the sake of networks, lets assume the following:
Subnet A: 192.168.1.0 / 255.255.255.0
Router A - Internal IP: 192.168.1.1
Router A - External IP: 184.108.40.206
Subnet B: 192.168.2.0 / 255.255.255.0
Router B - Internal IP: 192.168.2.1
Router B - External IP: 220.127.116.11
From Subnet A, we would like to fully access Subnet B, and vise-versa.
Anyone able to help? And if so, any suggested Cisco Router configs?