Date: Sat, 06 Jan 2001 10:27:29 -0700 From: Wes Peters <wes@softweyr.com> To: Sean <devotwo@home.com> Cc: freebsd-net@freebsd.org Subject: Re: Problem with Multihomed Machine Message-ID: <3A575581.E21B3264@softweyr.com> References: <3A573C37.1A5593D2@home.com>
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Sean wrote:
>
> Thanks for your help! It now seems to be working, at least for
> connecting W2K to the internet through FreeBSD. Here's a general
> question. Are UDP packets mail packets?
I don't know of any mail protocol that uses UDP. You're probably seeing
the DNS lookup requests for the mail server, which are normally UDP.
> I think I need to add some "udp divert" rule for natd, and a "udp
> allow all" rule for ipfw, since I don't have mail connectivity yet
> in W2K. At least when I did a tcpdump in FreeBSD, I got some
> messages about UDP packets. I'm fairly new to this, as you may be
> able to tell. But, it seems to be coming along. Thanks again!
You don't need to allow ALL UDP packets. Find a couple of sample ipfw
configurations in the archives, they've been posted a number of times,
and look at those.
Adding a "cache only" DNS server on your FreeBSD machine and having your
Windows machine use that as it's nameserver will potentially save some
DNS traffic (and latency) for you.
--
"Where am I, and what am I doing in this handbasket?"
Wes Peters Softweyr LLC
wes@softweyr.com http://softweyr.com/
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