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Date:      Mon, 23 Nov 1998 17:44:28 +0100
From:      Eivind Eklund <eivind@yes.no>
To:        van.woerkom@netcologne.de, G.Sittig@abo.FreiePresse.DE
Cc:        freebsd-isdn@FreeBSD.ORG
Subject:   Re: isppp + dynamic IP
Message-ID:  <19981123174428.S24412@follo.net>
In-Reply-To: <199811221609.RAA00533@oranje.my.domain>; from Marc van Woerkom on Sun, Nov 22, 1998 at 05:09:42PM %2B0100
References:  <Pine.LNX.4.02.9811221143241.25082-100000@speedy.gsinet> <199811221609.RAA00533@oranje.my.domain>

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On Sun, Nov 22, 1998 at 05:09:42PM +0100, Marc van Woerkom wrote:
> Solution? 
> For *incoming* packages, the network mechanism ought to keep a table 
> of all IP addresses that were in use by the interface, 
> routing packages with outdated addresses to the address in use now.
> 
> I am not sure how to make the system work like this.
> Well, natd looks promising - is anyone familiar with it here?

Yes.  natd is the wrong solution; this has to be done at the protocol
level.  ppp -alias handles it, I think (if I understood Brian
correctly, he fixed it).  I know my PPP setup handles it correctly,
but it doesn't exactly match up with any public codebase (too many
things are hardcoded for my specific case).  I hope to clean that up
and release it publically once we get a i4b release with the necessary
patches to support userland PPP implementation (which I've written and
submitted; something similar to them will probably end up in i4b at
some point, at least.)

Eivind.

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