Two routers on the same network
Lets say you are in an office and their is one continuous set of wiring… but two distinct divisions… These people are anal and want to have their own internet access… their own routers… all on one network… they are using a basic ip network setup but two separate routers…
(first turn off dhcp on both routers and keep subnet the same)
Using ISP #1
Using ISP #2
Division #1 wants to use ISP#1
Division #2 wants to use ISP#2
You can create your own IP scheme: 192.168.1.1-9 is for ISP #1, 192.168.1.20-29 for ISP#2, etc.