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Re: IPv4_MAPPED destination addresses

To: kuznet@xxxxxxxxxxxxx
Subject: Re: IPv4_MAPPED destination addresses
From: Sogor Laszlo <sogor@xxxxxxxxxxxxxxxxxxxxx>
Date: Wed, 10 May 2000 20:42:22 +0200 (CEST)
Cc: netdev@xxxxxxxxxxx
In-reply-to: <200005101731.VAA22760@xxxxxxxxxxxxx>
Sender: owner-netdev@xxxxxxxxxxx
hello!

On Wed, 10 May 2000 kuznet@xxxxxxxxxxxxx wrote:

> > We found the codes that were responsible for the  "IPv6->IPv4 fall back",
> > we commented it out.
> 
> And broke all the stack, right?
> 
> Mapped addresses must never leave host and host cannot use
> mapped addresses talking to IPv6 world. Seems, I do not understand
> your problem at all.

The SIIT only converts IPv6 packets with IPv4 MAPPED IPv6 destination
and IPv4 TRANSLATED IPv6 source addresses. So to send a packet from an
IPv6 only host to an IPv4 only host we MUST send an IPv6 packet with
MAPPED/TRANSLATED addresses (d/s) over the translator. 

shogy


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