News Group Posts

ipfilter routing packets by port number

Newsgroups: comp.unix.sco.misc
From: Tom Parsons <cis@tegan.com>
Subject: Re: Internet via ISDN - Two ethernet cards?
Date: Sun, 22 Oct 2000 16:38:27 GMT
Message-ID: <20001022113827.56227@tegan.com> 
References: <39F21824.6430DB83@aplawrence.com>
<8st60b$f35$1@pookiehead.databasix.com>
<39F2287F.D4507CED@aplawrence.com>
<8sv0mu$opf$4@m3t00.databasix.com> 

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.
-- 
==========================================================================
 Tom Parsons            tom@tegan.com          
==========================================================================    

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