On 25 January 2012 08:41, Netravali Ganesh <gnetravali@xxxxxxxxxxxx> wrote:
> I have 2 interfaces eth0 and eth1 on the system connected to different subnets. I need to route all the outgoing DNS traffic of the system via eth1 interface. Pls let me know if below IPTABLES rules is proper way ?
>
Hi,
the "iptables -A FORWARD" authorizes or denies traffic only. There is
no impact on the routing of your traffic.
You want to perform a "policy based routing". Your policy is "All
UDP/53 traffic must use eth1 as outgoing interface". To achieve this,
have a look to iproute and the LARTC guide
http://lartc.org/howto/
http://lartc.linuxsystems.it/index.php/Main_Page
Regards,
Yann.
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