Hi,
I got a small problem of which im not sure how to go about it.
Say we have 2 links to different providers coming in to a machine.
The current situation is that mail comes in and gets sent
through link1 (using sendmail)
I would like for mail to come in though link1 and get delivered
through link2 (that way, incoming traffic through link2 is minimized).
(note that i seem to use the term link to mean interface - ethernet etc
below)
Can this be done with the default route pointing at link2?
Wouldnt there be a problem with this since if mx record points through
link1, then when trying to commununiicate with a client through link2
the machine would source the packets to appear to come from link2 and hence
the client would not recognise the packets.
Is there a way to tell linux to source outgoing packets with the
address of the link that it came in from?
I believe the problem can be solved by having another sendmail machine
but i dont want to do this unless theres no other way.
Can ipchains help?
Or a NAT device?
Any help or suggestions on this matter?
In the end, the objective is to minimize incoming traffic going through link2
Regardss../
Wal
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