> I'm not sure of what you're saying, since the machine goes on the
internet 
> thru an ADSL router, that performs NAT by itself, so the firewall, as
far as 
> I'll use eth1 both as internal and external interface, will only forward 
> requests to the ADSL router. However, here there's the output of the
iptables 
> -L -n:
> 

ip_forwarding shall only work with two lan cards, no set up shall work
as a firewall with one network interface.

never tried aliasing either (eth1:0 eth1:1) but sence would it make even
if it works, the firewall should be between two networks.

Regards
Yayati.

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