Routing between 2 Interface Cards

Hello Sir

I am using Redhat Linux 9.0 Server.

Server has two Network Cards.

NIC 1 is connected in Switch 1. NIC 2 is connected in Switch2.

NIC 1 IP : 10.0.0.3/255.0.0.0 (eth 0)
NIC 2 IP : 192.168.0.103/255.255.255.0 (eth 1)

How to routing between two interface cards

Thank You

You could do this with iptables, but I find that tedious and messy. Check out a piece of software called firehol. You could then configure it with something like:
This should allow hosts on switch 1 using your server as a gateway to reach hosts on switch 2.

If you also want hosts on switch 2 to be able to reach hosts on switch 1, you would just add another router statement to the config:


Of course, you can also configure it to only route certain types of traffic if you like, but you should try to get the above working first as it's the simplest setup.

Hello Sir,

Whether if any Built in package is available in Redhat Linux

Thank You

A.Kannan

An RPM is available in the Downloads section on the firehol website.