On Mon, 29 Nov 2004, Rudi Starcevic wrote:
> I've been trying to figure this one out but am getting a little lost and
> confused. I have 2 NICs:
> eth0 192.168.2.7
> eth1 192.168.3.7
> each has it's own 10/100 switch.
Good.
> On eth0, 192.168.2.7, I have a small network of PC happily using NAT
> with a default gateway of 192.168.2.1 I'd like to forward traffic for
> eth1, 192.168.3.7 out eth0, 192.68.2.7
Sure.
> With one NIC I'm confident but with two, or more, I'm lost. I have
> checked out Lartc but am still unsure, perhaps I should be posting this
> there?
This is a firewall question so it seems relevant here to me, but a
Linux-specific forum would be fine too.
The answer:
- make sure the box with two NIC's has proper routing for itself. Can it
ping hosts on both networks and the Internet in general?
- enable forwarding in the kernel. Doing something like:
echo 1 > /proc/sys/net/ipv4/ip_forward
in your /etc/rc.d/rc.local should do it.
With that you should be able to ping the real world from a host on the
192.168.3 network. See if it works.
--
</chris>
"Fans of Mozilla's free, open-source Firefox browser make the
ardent Apple faithful look like a bunch of slackers."
- Rebecca Lieb at clickz.com
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Received on Dec 06 2004
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