Hello. I'm needing assistance with the setup of two subnets within a single router.
Here's my information:
Router has only two GigabitEthernet interfaces.
GigabitEthernet0/0 has 172.20.0.1 ip and 255.255.252.0 mask.
GigabitEthernet0/1 has 172.21.0.1 ip and 255.255.128.0 mask
Now, on each side there is a Switch with two computers.
I need to have 1 computer on each side on the same subnet, and the other one on a different subnet, meaning a pc on the same side cannot communicate with the other computer on its side, but can with another computer on the other side.
I have no idea how to configure this on the router, can anyone please help me?
Thanks in advance!