Re: [SLUG] Firewall dropping packets

[Doug Stalker <dougs@xxxxxxxxxxxxxxxx>]

"Marshall, Joshua" wrote:
> 
> Hi,
> 
> I'm having weird happenings on my firewall.
> 
[...]
> 
> The problem I'm having is forwarding data between the 10.0.5.6 eth1 to
> the 10.10.10.x eth0. Packets are working fine for the rest of the
> system.
> 

[...]


> The ipchains rules (in, out, forward) accept the 10.x.x.x subnet on both
> eth0 and eth1. These shouldn't be affecting it as half of the packets
> get out. At least, the in and out are working fine - the forward one
> isn't anything spectacular (accept 10.x.x.x on device eth0 or eth1)
> 
> 
> Is there anything I've overlooked? This one is getting me beat.

Is it possible it's something really simple like not having IP
forwarding enabled on the firewall?

echo 1 > /proc/sys/net/ipv4/ip_forward

 - Doug


-- 
_____________________________________________________________
  Network Operations Engineer - Big Pond Advance Satellite
 Ericsson Australia - Level 5, 184 The Broadway, Sydney 2000
  Ph: +61-416-085-390   Email: doug@xxxxxxxxxxxxxxxxxxxxx