Hi,
I have 2 internet connections (1 adsl/1 cable). I am try to route all
outgoing mail from the mail server (on the same box), through the ADSL
connection routing through the cable will mean mail will get rejected by AOL
:( I am using qmail as the mail server.
The configuration is:
eth0 : cable connection
ppp0 : adsl connection
eth2 : internal lan connection
I have configured split access as described in LARTC section 4.2.1, and that
is working fine, however, routing outgoing mail is proving to be elusive.
I have turned off reverse path filtering, and, have loaded probably every
netfilter related kernel module.
Here are some more information :
IPTABLES RULES (I did them for all interfaces to see if it worked - it
didnt.)
iptables -t mangle -A PREROUTING -p tcp -i eth0 --dport 25 -j
MARK --set-mark 1
iptables -t mangle -A PREROUTING -p tcp -i eth1 --dport 25 -j
MARK --set-mark 1
iptables -t mangle -A PREROUTING -p tcp -i eth2 --dport 25 -j
MARK --set-mark 1
iptables -t mangle -A PREROUTING -p tcp -i lo --dport 25 -j MARK --set-mark
1
iptables -t mangle -A PREROUTING -p tcp -i ppp0 --dport 25 -j
MARK --set-mark 1
iptables -L -v -t mangle
Chain PREROUTING (policy ACCEPT 89929 packets, 26M bytes)
pkts bytes target prot opt in out source
destination
0 0 MARK tcp -- eth0 any anywhere anywhere
tcp dpt:smtp MARK set 0x1
0 0 MARK tcp -- eth1 any anywhere anywhere
tcp dpt:smtp MARK set 0x1
11 1204 MARK tcp -- eth2 any anywhere anywhere
tcp dpt:smtp MARK set 0x1
26 2152 MARK tcp -- lo any anywhere anywhere
tcp dpt:smtp MARK set 0x1
0 0 MARK tcp -- ppp0 any anywhere anywhere
tcp dpt:smtp MARK set 0x1
ip route show
yyy.yyy.yyy.yyy dev ppp0 proto kernel scope link src xxx.xxx.xxx.xxx
zzz.zzz.zzz.zzz dev eth0 scope link src zzz.zzz.zzz.zzz
192.168.0.0/24 dev eth2 scope link
zzz.zzz.zzz.zzz/22 dev eth0 proto kernel scope link src zzz.zzz.zzz.zzz
127.0.0.0/8 dev lo scope link
default via zzz.zzz.zzz.zzz dev eth0
ip rule show
0: from all lookup local
32755: from xxx.xxx.xxx.xxx lookup T2
32756: from zzz.zzz.zzz.zzz lookup T1
32760: from all fwmark 0x1 lookup mail
32766: from all lookup main
32767: from all lookup 253
ip route show table mail
default via xxx.xxx.xxx.xxx dev ppp0
I feel that I have tried everything to get this to work - read the archives,
googled, played with a million iptables rules, iproutes and loaded kernel
modules - but to no avail!
rtacct shows nothing.
Using mandrake 9.2 btw.
Please help!!!
---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.563 / Virus Database: 355 - Release Date: 17/01/2004
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