Routing question?

[Kurt Buff]

Looks like I sent the first copy from an old address. Sorry if this dupes...


All,

I have a FreeBSD 5.3 box running
postfix/amavisd-new/spamassassin/clamav. Currently, we have two
entrances to our network, one is the Watchguard FBIII for our T1, the
other is a PC running Win2k and Winproxy, serving our DSL line. The PC
is starting to flake out, and I'd like to replace it with a Wachguard
SOHO that we have laying around.

The default gateway for the FreeBSD box is pointed at the WG FBIII, as
that's the way most of our email comes through.

What the PC with Winproxy does is accept inbound email connections to
our secondary MX, and presents them to the FreeBSD box. I'm assuming
that the Winproxy program was doing something funky to make all of this
happen, but I'm really set on replacing it. This has been working for a
year or two, but lately the Winproxy program on the PC is falling over
several times a day. It's not a hardware error - all other programs on
the machine work just fine, but Winproxy is dieing.

When I hook up the SOHO, I can't get emails through the DSL line.

Does anyone out there know what I can do to set up the FreeBSD box so
that email coming through on the DSL line can be handled?

One other detail that might affect the answers given - there are two IP
addresses on the NIC in the FreeBSD box. One of those addresses handles
the inbound emails (applying all of the savvy of
amavis/spamassassin/clamav) and the other handles outbound mail, and no
mail scanning happens to mail through that IP address.

Thoughts? Sneers?

Kurt