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Date: Sat, 28 Feb 2004 21:40:46 -0800
From: "David S. Miller" <davem@redhat.com>
To: Michael Schlenstedt <Michael-ml-kernel@schlenn.net>
Cc: linux-kernel@vger.kernel.org, jjciarla@raiz.uncu.edu.ar
Subject: Re: PROBLEM: /proc/sys/net/ipv4/ip_dynaddr does not work correctly
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On Sun, 15 Feb 2004 22:22:42 +0100
Michael Schlenstedt <Michael-ml-kernel@schlenn.net> wrote:

> 
> [2.] Full description of the problem/report:
> 
> I've recognized that the debug-mode ("2") with
> /proc/sys/net/ipv4/ip_dynaddr does not work correctly. In fact, if I do
> a "echo 2 > /proc/sys/net/ipv4/ip_dynaddr", nothing happens. There are no
> messages in the syslog, and there is no function of ip_dynaddr at all.

It will only print a "debugging message" if the IP address of the system
changes and a packet is attempted to be sent over a TCP connection, then
it will print a message looking like:

tcp_v4_rebuild_header(): shifting iner->saddr from x.x.x.x to y.y.y.y

And it in fact does do this.