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SIP now IPv6

yakov@watson.ibm.com Sun, 27 December 1992 15:59 UTC

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Date: Sun, 27 Dec 1992 10:48:43 -0500
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From: yakov@watson.ibm.com
To: deering@parc.xerox.com, sip@caldera.usc.edu, ip-encaps@sunroof.eng.sun.com, iana@isi.edu, iab@isi.edu
Cc: dkatz@cisco.com, he@isi.edu, hwb@upeksa.sdsc.edu, dlynch@interop.com
Subject: SIP now IPv6
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Ref:  Your note of Sun, 27 Dec 1992 00:23:26 PST

Steve,
When describing issues related to TCP/IP header compression
over SLIP you said that:
   "Any new version of IP will have to be assigned a version number
    less than 8..."
That statement certainly contradicts your previous assertion
that "the IP version number is in no danger of exhaustion".
In fact, ST-II uses 5, SIP is assigned 6, and IPv7 proposal
written by Robert Ullmann uses 7 (I am not quite sure whether
this number is officially assigned by the IANA, or Robert just used
this number in his document). Given this, what should be the
version number assigned to PIP, if it is to be used in
conjunction with TCP/IP header compression over SLIP ?
Yakov.

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