[OT] routing

[hicham]

Hello
 I have some basic questions on some network and routing issue

I need to setup two pc 's A and B acting  as  gateways
( running on Fedora )
assigned ip adress 10.3.5.223 for pc A  and 10.3.4.225 for pc B
connected to a private lan network 10.3.0.0
now the subnet for the gateway A is a network 10.10.1.0 / 24 , gateway
A in this subnet got ip address 10.10.1.1
and subnet for gateway B is a network 10.20.1.0/24, gateway B ip
address is 10.20.1.1

now I need to get a pc in subnet 10.10.1.0 / 24, communicate with a pc
in subnet 10.20.1.0/24, How do I achieve that ? thru a routing table
right ?

what do I need to fill in my route table in system-config-network ?

Thanks for replying

hicham