We have a very simple network setup:
-> Unmanaged LAN Switch
-> Cisco ADSL 1800 Router (192.168.1.1)
We have been running VPN through the router, but we just don't have enough bandwidth for all services. So, we're going to get an 877 to replace the 1800 (i.e. the new 192.168.1.1) and we'll use the 1800 to terminate VPN traffic.
I've never added a second router to a site before, so I'm not 100% sure how to set it all up.
Would I simply set the 1800 up as, say, 192.168.1.2 so both routers are on the same subnet, keep 192.168.1.1 as the default gateway for the LAN, and set up static routes on the Servers / Clients that need to communicate to a VPN network using 192.168.1.2 as the gateway?
Is it that simple?