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Re: Do you know the TCP stack? (127.x.x.x routing)

To: Steve Iribarne <steve.iribarne@xxxxxxxxxxxxxxxxxxxxx>
Subject: Re: Do you know the TCP stack? (127.x.x.x routing)
From: jamal <hadi@xxxxxxxxxx>
Date: 07 Mar 2005 18:50:31 -0500
Cc: Eran Mann <emann@xxxxxxx>, Zdenek Radouch <zdenek@xxxxxxx>, Thomas Graf <tgraf@xxxxxxx>, Andi Kleen <ak@xxxxxx>, Martin Mares <mj@xxxxxx>, netdev@xxxxxxxxxxx, linux-net@xxxxxxxxxxxxxxx
In-reply-to: <422C0B50.20500@xxxxxxx>
Organization: jamalopolous
References: <m1y8d0mss2.fsf@xxxxxx> <E1D7zBN-0004hX-00@xxxxxxxxxxxxxxxxxxxxxxx> <E1D7lQN-0002gz-00@xxxxxxxxxxxxxxxxxxxxxxx> <E1D7lQN-0002gz-00@xxxxxxxxxxxxxxxxxxxxxxx> <E1D7zBN-0004hX-00@xxxxxxxxxxxxxxxxxxxxxxx> <20050306173145.GQ31837@xxxxxxxxxxxxxx> <E1D81mg-0002rz-00@xxxxxxxxxxxxxxxxxxxxxxx> <m1y8d0mss2.fsf@xxxxxx> <3sp35g$7hpm0@xxxxxxxxxxxxxxxxxxxxxxx> <422C0B50.20500@xxxxxxx>
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BTW, please cc netdev or myself if you are addressing me. This email was
just forwarde by someone else to me - I am not on linux-net. You seem to
have trimmed down the CC list.

On Mon, 2005-03-07 at 18:02:18, Steve Iribarne wrote:
>-> What is so wrong with RFC198 addresses??

>Really RFC1918 you mean...

Indeed 1918

>Well if your product is placed behind a nat'd network, MOST if not ALL
> nat'd network addresses on the "inside" use the RFC1918 address space.  

I read this a few times and still didnt get it:
Why is it that people using 1918 addresses are affecting you?
Does using 127.x help you because you assume _nobody_ else would be using
127.x addresses? 
I am assuming you want this address for some internal network whereas the 
external contains some routable addresses?

> So I have this working in my products now.  I had to do something a bit
> different in that I want a "special" 127.xx.xx.xx range to be sent out
> on the wire.  So here is what I did.


Seems you did too much. Look at the 2 liner patch posted by Eran Mann
(which should work on 2.4 and 2.6 as well).


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