disable ipforwarding for one route

There are three ethernet interfaces eth0, eth1 and eth2 on my Linux system.
I enabled ip forwarding so the ip packet can be routed between any pair of
these three interfaces. Now, I want to disable ip forwarding only between
eth1 and eth2. What should I do?

Thanks,

tiggr

tiggr <(E-Mail Removed)> wrote:

> There are three ethernet interfaces eth0, eth1 and eth2 on my Linux
> system. I enabled ip forwarding so the ip packet can be routed between
> any pair of these three interfaces. Now, I want to disable ip forwarding
> only between eth1 and eth2. What should I do?

Use iptables and block the traffic:

iptables -A FORWARD -i eth1 -o eth2 -j REJECT
iptables -A FORWARD -i eth2 -o eth1 -j REJECT


Ciao, Horst
--
»When pings go wrong (It hurts me too)« E.Clapton/E.James/P.Tscharn

Thank you very much. This is exactly what I want to know.

tiggr

"Horst Knobloch" <(E-Mail Removed)> wrote in message
news:bl7ses$196t$(E-Mail Removed)...
> tiggr <(E-Mail Removed)> wrote:
>
> > There are three ethernet interfaces eth0, eth1 and eth2 on my Linux
> > system. I enabled ip forwarding so the ip packet can be routed between
> > any pair of these three interfaces. Now, I want to disable ip forwarding
> > only between eth1 and eth2. What should I do?
>
> Use iptables and block the traffic:
>
> iptables -A FORWARD -i eth1 -o eth2 -j REJECT
> iptables -A FORWARD -i eth2 -o eth1 -j REJECT
>
>
> Ciao, Horst
> --
> »When pings go wrong (It hurts me too)« E.Clapton/E.James/P.Tscharn