configure router

hi all

i am need your help..

how in switch A, a computer always using ip segment 192.168.103.1,
if a computer in switch A change the ip segment like 192.168.104.3, he or she cannot ping to computer in switch b (192.168.104.2)

need your help bro…

It’s because you can’t use the same subnet for both of your router’s interfaces without proper configuration.

thanks bro for ur commnent,

but, in eth0 router, my ip address is 192.168.103.1 and eth1 my ip address is 192.168.104.1
and how i can configure in switch A always using subnet 192.168.103.1, it they (client) in switch A, change the ip, they can not connect to switch b

only 192.168.103.xxx works on switch A. router is not bridge