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From: Jim Laurino <nfcan.x.jimlaur@dfgh.net>
To: netfilter@lists.netfilter.org
Subject: Re: Forwarding while on same subnet...confusions (nfcan: addressed to exclusive sender for this address)
Date: Thu, 25 Nov 2004 10:07:11 -0500	[thread overview]
Message-ID: <20041125150711.GA27717@salty> (raw)
In-Reply-To: <dc56727e041123110948cb3a14@mail.gmail.com> (from +nfcan+jimlaur+77cd5e9588.mismith356#gmail.com@spamgourmet.com on Tue, Nov 23, 2004 at 14:09:12 -0500)

On 2004.11.23 14:09, Mike Smith - mismith356@gmail.com wrote:
> Hello All,
>
.......
> and then, after some google'ing and reading:
> 
> iptables -t nat -A POSTROUTING -s 138.1.89.6 -p tcp --dport 80 -j SNAT
> --to 138.1.88.246
>

One more observation.
The postrouting is looking for packets with a *destination* port 80.

I think this rule is meant to deal with packets from the apache server
returning to the client. I think apache will have a well known
*source* port of 80 in this case, the destination port is random.

You could look with a sniffer to check.
Or look at the packet counters to see if it is matching.
........


      parent reply	other threads:[~2004-11-25 15:07 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-11-23 19:09 Forwarding while on same subnet...confusions Mike Smith
2004-11-24 16:06 ` Jason Opperisano
2004-11-25 15:07 ` Jim Laurino [this message]

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