How to make a mutli-homed host use one IP for a NAT'ed host
gregcope at gmail.com
Thu Apr 21 17:12:06 CEST 2005
> Sorry, my mistake. It was late at night after a long day. :(
Many Thanks Grant.
No need to appologies - and your up already!
So I swapped to eth1 - and it would appear that packets are getting
marked as if I add in the ip route add command I can no longer connect
to an SMTP server from the mailserver (using telnet HOST 25)
So the last few hurdles...
I need to use the same router - an ADSL thing as everything else, I
just want the packets to be sent from a different $MAIL_INET_ALIAS IP
(as opposed to the usual INET_IP
$ ip rule add fwmark $SMTP_MARK table $IPROUTE2_SMTP_TABLE
Works fine and makes sense.
However I think these are the sticking points:
ip route add table $IPROUTE2_SMTP_TABLE dev $INET_IFACE src $MAIL_INET_ALIAS
ip route add table $IPROUTE2_SMTP_TABLE default via $INET_IP
$ ip route add table smtp.out dev eth0 src 18.104.22.168
$ ip route add table smtp.out default via 22.214.171.124
RTNETLINK answers: File exists
.241 is my internet gateway router, not the default external IP of my
firewall which is eth0=126.96.36.199. eth0:1=188.8.131.52 which is
Combinations of either of the above mean the mail server cannot
connect to an exteriror mail server.
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