Re: a little help on iptables

["André Serralheiro" <serralheiro@gmail.com>]

Hi Luca

It could be easier to give you a hand if you provides us with the
output of: ifconfig; route -n and iptables -L (and iptables -L -t nat)

you call always try to execute the following:
route add default gateway x.x.x.x netmask y.y.y.y ethX
for the default gateway and:
route add -net z.z.z.z netmask k.k.k.k dev ethY
for the other route

Hope it helps

Andre Serralheiro

On 9/7/06, Luca Ferrari <fluca1978@infinito.it> wrote:
> Hi all,
> this is the situation: I've got a firewall double-homed, with a NIC assigned
> to a public IP and the other to the LAN network. Until now I've used the
> external NIC as default gateway, since my router has a public address too.
> Now I'd like to use another router on the lan as default, leaving untouched
> the external interface (since the firewall must be accessible from the
> outside world). So I've changed the default gw to the lan one, and it works,
> but I get the external ip unreachable, and I think it's because it does not
> know the gateway interface. So, how can I specify for the external interface
> the gateway to use? If I try to do it thru the route command it replies sayng
> that the network is unreachable. Any help?
> Thanks,
> Luca
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