Re: minor point

Frank Kastenholz <kasten@ftp.com> Mon, 28 December 1992 16:13 UTC

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Date: Mon, 28 Dec 1992 11:10:49 -0500
Message-Id: <9212281610.AA23630@ftp.com>
To: huston@ps73.ako.dec.com
Subject: Re: minor point
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From: Frank Kastenholz <kasten@ftp.com>
Reply-To: kasten@ftp.com
Cc: dee@skidrow.ljo.dec.com, criteria@ftp.com

Steve,

I believe that your particular concerns are adequately covered in our
document under the Transistion section; where we discuss IPv7/IPv4
co-existance and the ability to have IPv4-only hosts communicate with
IPv7-only hosts in some fashion. The method used to achieve this is
an implementation issue. You propose that IPv4 hosts be able to be
addressed algorithmically out of the IPv7 address by "encapsulating"
the IPv4 address in an IPv7 address. That is one way to do it. One
could also do some other operation on the IPv7 address to obtain the
IPv4 address, such as using it as a key or hash into a table that
provides the correct IPv4 address. 

Frank Kastenholz

 > Frank,
 > 
 > >I am not sure that this is necessary. I do not believe that everyone will
 > >change to IPv7 all at once. It would be a gradual process and you would
 > >apply for your IPv7 address when you want to change over.
 > >
 > > > Possibly a sub-item under ease of administration or the like: as
 > > > mandated in the IAB draft, any IPv7 address scheme needs to have all
 > > > of the IPv4 address space embedded in it so everyone does't have to
 > > > apply for new numbers all at once.
 > 
 > I can't speak for Donald, but when I first read his message, it seemed
 > like he was saying that a system running IPv7 needs to be able to directly
 > address an IPv4 system.  Because everyone will not change to IPv7 at once,
 > or maybe ever, the point you reinforced in your reply.
 > 
 > I would agree with this point as well.