I'm doing remote support for someone with a campus WAN that has three segments. the three are 192.168.1.x/255.255.255.0; 192.168.2.x/255.255.255.0; and 192.168.3.x;255.255.255.0
I want to configure my VPN router to allow me to reach any of the addresses on any segment. I specify 192.168.1.0;255.255.255.0 in the VPN configuration and I can reach the .1 segment perfectly. Is there a different subnet mask I can use and reach all three?
If so, would the segments also need to have that different subnet mask configured on each PC, even if they are working OK now?