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From: horape@tinuviel.compendium.com.ar
To: netfilter@lists.netfilter.org
Subject: Re: DNATing packets sent to the NATing box
Date: Sun, 14 Dec 2003 15:02:26 -0300	[thread overview]
Message-ID: <20031214180226.GC19059@tinuviel.compendium.com.ar> (raw)

> > > > It looks like the proxy is grabbing the packets first and then dropping
> > > > them directly onto the INPUT chain. Try disabling the proxy and release
> > > > the bound ports then try it again. Once the packets reach PREROUTING
> > > > you can DNAT them to another port.
> > > I could ubnderstand the proxy code managing to grab the packet off the
> > > wire before netfilter (PREROUTING) sees it, but I don't see how it would
> > > then get seen by the INPUT chain - as far as I know, it's not possible
> > > for a packet to reach netfilter's INPUT chain without first going through
> > > the PREROUTING chain.   If a packet bypasses one of these, it will bypass
> > > both.
> > Well that's what I thought but I can't explain his results any other way.
> > What are we missing here?

> 	My question exactly ... 
> 	a silly question is :
> 	what if anything is in /proc/net/ip_conntrack for these connections?

udp      17 179 src=200.68.94.100 dst=200.61.169.146 sport=5000 dport=18416 src=200.61.169.146 dst=
200.68.94.100 sport=18416 dport=5000 [ASSURED] use=2

(200.68.94.100 is my ip)

> 	Alistair Tonner

Saludos y gracias,
					HoraPe
---
Horacio J. Peña
horape@compendium.com.ar
horape@uninet.edu


             reply	other threads:[~2003-12-14 18:02 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-12-14 18:02 horape [this message]
  -- strict thread matches above, loose matches on Subject: below --
2003-12-14 15:39 DNATing packets sent to the NATing box horape
2003-12-14 13:52 horape
2003-12-14 14:28 ` Jeffrey Laramie
     [not found] ` <200312140919.04832.JALaramie@Loudoun-Fairfax.com>
2003-12-14 15:26   ` horape
2003-12-14 15:51     ` Jeffrey Laramie
2003-12-14 16:04       ` horape
2003-12-14 16:55         ` Jeffrey Laramie
2003-12-14 17:16           ` Antony Stone
2003-12-14 17:35             ` Jeffrey Laramie
2003-12-14 17:51             ` horape
2003-12-14  0:52 horape
2003-12-14  4:55 ` Joel Newkirk
2003-12-14  8:42 ` Antony Stone
2003-12-14 12:32   ` horape
2003-12-21  4:49 ` horape

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