I'll use my Belkin router as an example of a main router; I think you can follow the following and substitute the appropriate values for your router.
a. What IP subnet is used (ex: 192.168.2.0 thru 192.168.2.255)?
b. What address range is used by the Dhcp server (ex: 192.168.2.2 thru 192.168.2.100)?
c. What is the router's LAN IP (ex: 192.168.2.1)?
d. What static IPs are already assigned (ex: about half a dozen that I won't bother listing)?
Any of the IP addresses in (a) except the first (.0) and last (.255) and those in (b), (c) and (d) can be used for the static IP of the secondary router. In my example that would be any from 192.168.2.101 through 192.168.2.254.
a. What IP subnet is used (ex: 192.168.2.0 thru 192.168.2.255)?
b. What address range is used by the Dhcp server (ex: 192.168.2.2 thru 192.168.2.100)?
c. What is the router's LAN IP (ex: 192.168.2.1)?
d. What static IPs are already assigned (ex: about half a dozen that I won't bother listing)?
Any of the IP addresses in (a) except the first (.0) and last (.255) and those in (b), (c) and (d) can be used for the static IP of the secondary router. In my example that would be any from 192.168.2.101 through 192.168.2.254.
