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From: "Dan Langille" <junkmale@xtra.co.nz>
Organization: DVL Software Limited
To: James Snow <sno@teardrop.org>
Date: Sat, 19 Sep 1998 09:25:36 +1200
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Subject: Re: pppd + natd
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Warning: I don't know what I'm talking about.

But I think I've seen suggestions that PPP uses ip aliasing so nat is 
therefore redundant.

On 18 Sep 98, at 11:36, James Snow wrote:

> 
> I'm having some trouble getting NAT going over ppp with pppd and natd.
> 
> In this instance, the machines inolved look something like this
> 
> 10.0.0.28 <--> 10.0.0.99/Dialup-IP <--> Dialup Gateway <--> Internet
>    PC              pppd + natd              ISP  & the rest of the world
>                      machine
> 
> The output to the console as given by the -v option of natd is this:
> 
> In [TCP]  10.0.0.28 -> some.real.net.ip:23 aliased to
>           10.0.0.28 -> some.real.net.ip:23
> 
> Logic dictates, and some stuff I've read confirms, that this is not doing
> anything. No change was made to the IP headers on the packets involved. It
> should have read
> 
> In [TCP]  10.0.0.28 -> some.real.net.ip:23 aliased to
>           10.0.0.99 -> some.real.net.ip:23

--
Dan Langille
DVL Software Limited
The FreeBSD Diary - my [mis]adventures
http://www.FreeBSDDiary.com

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