SliTaz Forum

Enira

Member

Registered: 2012-07-11

Posts: 8

iptables won't work

I installed iptables in Slitaz, however my traffic isn't being routed to eth0. I am trying to capture incoming traffic and routing it to eth0.

My local.sh script:

# ip port forwarding

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

iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE

Anyone any idea what's going wrong?

gdesilva

Member

Registered: 2011-04-07

Posts: 419

Re: iptables won't work

I suspect you would need to edit the /etc/firewall.conf...

mojo

Administrator

Registered: 2011-03-29

Posts: 2,173

Re: iptables won't work

eth0 is the WAN or internet connected ethernet card.

You have to setup a second ethernet card for the LAN side.

Follow the Internet Connection Sharing tutorial:

http://forum.slitaz.org/topic/internet-connection-sharing/page/2

Enira

Member

Registered: 2012-07-11

Posts: 8

Re: iptables won't work

@mojo, yeah the traffic is normally being routed to tun0 (OpenVPN) so it needs to go to eth0. Thanks for the link though.

@gdesilva, might think along those lines. Is the firewall.conf file by default enabled and/or restricting?

Concerning OpenVPN: All traffic gets sucked in to the VPN and an IP is assigned correctly. The client is giving 'me a thumbs up' and don't show any bizarre logs. So I am assuming that everything works as it should. If anyone has some troubleshooting which I could verify that OpenVPN is working as it should on Slitaz. Kindly appreciated.

Thanks in advance guys,

gdesilva

Member

Registered: 2011-04-07

Posts: 419

Re: iptables won't work

@Enira, my knowledge on this is limited - all I know is that when I installed iptables, I had to edit /etc/firewall.conf to get the rules working. Sorry, cannot shed more light on this.