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<DIV><FONT face=Calibri>According to RFC 5969 for 6rd:</FONT></DIV>
<DIV><FONT face=Calibri></FONT> </DIV>
<DIV><FONT face=Calibri>" Embedding less than the full 32 bits of a CE
IPv4 address is possible<BR> only when an aggregated block of IPv4
addresses is available for a<BR> given 6rd domain. This may
not be practical with global IPv4<BR> addresses, but is quite likely
in a deployment where private<BR> addresses are being assigned to
CEs. "</FONT></DIV>
<DIV><FONT face=Calibri></FONT> </DIV>
<DIV style="FONT: 10pt Tahoma"><FONT size=3 face=Calibri>So the /64
limitation for 6rd applies when an aggregated block of IPv4 addresses is not
being used. </FONT></DIV>
<DIV style="FONT: 10pt Tahoma"><FONT size=3 face=Calibri></FONT> </DIV>
<DIV style="FONT: 10pt Tahoma"><FONT size=3 face=Calibri>Regards,</FONT></DIV>
<DIV style="FONT: 10pt Tahoma"><FONT size=3 face=Calibri>-Ahmed</FONT></DIV>
<DIV style="FONT: 10pt Tahoma"><FONT size=3 face=Calibri></FONT> </DIV>
<DIV style="FONT: 10pt Tahoma">
<DIV><BR></DIV>
<DIV style="BACKGROUND: #f5f5f5">
<DIV style="font-color: black"><B>From:</B> <A title=dr@cluenet.de
href="mailto:dr@cluenet.de">Daniel Roesen</A> </DIV>
<DIV><B>Sent:</B> Tuesday, March 01, 2011 1:15 AM</DIV>
<DIV><B>To:</B> <A title=address-policy-wg@ripe.net
href="mailto:address-policy-wg@ripe.net">address-policy-wg@ripe.net</A> </DIV>
<DIV><B>Subject:</B> [address-policy-wg] Re: IPv6 allocations for
6RD</DIV></DIV></DIV>
<DIV><BR></DIV>On Mon, Feb 28, 2011 at 02:44:53PM +0200, Ahmed Abu-Abed
wrote:<BR>> Note that the /64 limitation is specific to 6RD protocol as I
explained<BR>> in an earlier email.<BR><BR>I fail to find this email, could
you provide archive pointers or explain<BR>again?<BR><BR>I'm not aware of any
instrinct /64 limitation of 6RD, and existing<BR>implementations prove the
contrary.<BR><BR>Best regards,<BR>Daniel<BR><BR>-- <BR>CLUE-RIPE -- Jabber: <A
href="mailto:dr@cluenet.de">dr@cluenet.de</A> -- <A
href="mailto:dr@IRCnet">dr@IRCnet</A> -- PGP: 0xA85C8AA0<BR></BODY></HTML>