ipfilter routing packets by port number

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From - Sun Oct 22 15:57:51 2000
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Path: news.randori.com!newsfeeder.randori.com!feedwest.news.agis.net!agis!newsfeed.direct.ca!look.ca!feed.nntp.primus.ca!feed.nntp.primus.ca!radon.golden.net!enigma.xenitec.on.ca!news.xenitec.on.ca!news
From: Tom Parsons <cis@tegan.com>
Subject: Re: Internet via ISDN - Two ethernet cards?
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In-Reply-To: <8sv0mu$opf$4@m3t00.databasix.com>; from Gary L. Burnore on Sun, Oct 22, 2000 at 03:22:06PM +0000
References: <39F21824.6430DB83@aplawrence.com> <8st60b$f35$1@pookiehead.databasix.com> <39F2287F.D4507CED@aplawrence.com> <8sv0mu$opf$4@m3t00.databasix.com> 
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Gary L. Burnore enscribed:
| Tony Lawrence <tony@aplawrence.com> wrote:
| : "Gary L. Burnore" wrote:
| :> 
| :> Tony Lawrence <tony@aplawrence.com> wrote:
| :> : "Gary L. Burnore" wrote:
| :> 
| :> :> What would be really nice is to be able to say packets destined for X host
| :> :> should use interface/card/ip X and packets destined for everything not
| :> :> specified should go to the default route.
| :> 
| :> : Now you've got me confused :-)
| :> 
| :> : Unless you mean something else, you can give a route for a
| :> : specific host..
| :> 
| :> Perfect example: We've an nntpserver and a mail server on the same
| :> machine. Two nic cards, one for mail, one for news. Our peers feed to the
| :> news card just fine. But since the mail machine card is the default route,
| :> news goes out the email card.
| :> 
| :> I'm not aware of a way for us to say "If it's news, go out card b, not
| :> card a."
| 
| 
| : OK- I wasn't paying close attention that you meant routing based
| : on packets, not address.  Isn't that like QOS routing?
| 
| I think it'd be more like routing based on port rather than packet.
| Outbound stuff from port 119 should go to port b while everything else
| goes to port a.

Scanning through the docs, it looks like ipfilter will do this.
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 Tom Parsons            tom@tegan.com          
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