[lug] network card problem

[Nate Duehr]

oops.  I forgot the quotes on my "1" in my reply... argh.

John Karns wrote:

> On Mon, 20 May 2002, Brett Monson said:
>
> > I have two 3-com network cards. Eth1 can interface to the network here
> > at work and access the internet. Eth0 (IP:10.10.10.10) can ping a
> > linux workstation (10.10.10.11) and vice versa that are connected via
> > a null modem cable. I cannot however ping or get on the internet via
> > the 10.10.10.11 workstation. When I installed RedHat 7.2 I used the no
> > firewall option. Also, I have installed iptable updates as required to
> > use Shorewall. Whether shorewall is on or off, there seems to be no
> > transfer of packets from eth0 to eth1. Is there some kind of
> > configuration option or code that needs to be implimented to make
> > these cards transfer packets between them with no firewall present?
>
> Without knowing anything about the .11 ws machine that you're trying to
> use as a gateway and not being a RH user myself, I would guess that you
> need to set up masquerading on the ws and enable port forwarding:
>
> echo "1" > /proc/sys/net/ipv4/ip_forward
>
> unless it's already set up that way.
>
> ----------------------------------------------------------------
> John Karns                                        jkarns at csd.net
>
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