Re: route mail through different gateway

Linux Advanced Routing and Traffic Control

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On 04-08-2006 04:36, Michael wrote:
Hi All,

I've got server with one LAN card eth0 ip=10.0.0.5 <http://10.0.0.5>

default access t ointernety done through ADSL router gw 10.0.0.1 <http://10.0.0.1> we got second internet access through another ADSL router gw 10.0.0.2 <http://10.0.0.2>

I want to send all e-mail out through gw 10.0.0.2 <http://10.0.0.2>
How it can be done?
I've tried to mark packets:
iptables -t mangle -A OUTPUT -p tcp --dport 25 -j MARK --set-mark 0x1
and
ip ru add fwmark 0x1 table mail.out
ip ro add default via 10.0.0.2 <http://10.0.0.2> lookup mail.out

You mean:

ip ro add default via 10.0.0.2 table mail.out

Try this also:

echo 0 > /proc/sys/net/ipv4/conf/all/rp_filter

Jarek P.

PS: I hope you have this mail.out properly added (or replace this with a number e.g.: 100) and fwmark enabled in kernel config.

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