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RE: Fwd: Broadband Forum liaison to IETF on IPv6 security

2009-11-09 14:46:35
Hemant,

Fair enough. I suppose that there are enough /55's or /56's that every 
household can have one; however, it does make "right sizing" the initial 
allocation to the ISP very important. We would not want to be allocating 
non-contiguous /28's on a regular basis :-)

Best Regards, 
  
Jeffrey Dunn 
Info Systems Eng., Lead 
MITRE Corporation.
(301) 448-6965 (mobile)


-----Original Message-----
From: Hemant Singh (shemant) [mailto:shemant(_at_)cisco(_dot_)com] 
Sent: Friday, November 06, 2009 8:07 PM
To: Dunn, Jeffrey H.; Wes Beebee (wbeebee); Antonio Querubin
Cc: Thomas Narten; Fred Baker (fred); 6man-ads(_at_)tools(_dot_)ietf(_dot_)org; 
SAVI Mailing List; william(_dot_)allen(_dot_)simpson(_at_)gmail(_dot_)com; 
Hesham Soliman; IETF(_at_)core3(_dot_)amsl(_dot_)com; Erik Nordmark; 
savi-ads(_at_)tools(_dot_)ietf(_dot_)org; IPv6 Operations; Susan Thomson 
(sethomso); v6ops-ads(_at_)tools(_dot_)ietf(_dot_)org; Robin Mersh; Mailing 
List; Susan(_at_)core3(_dot_)amsl(_dot_)com; JINMEI Tatuya / 神明達哉
Subject: RE: Fwd: Broadband Forum liaison to IETF on IPv6 security

Jeffrey,

The answer to your question is a yes.  Alternatively, the ISP may just dole out 
a delegated prefix shorter than a /64 and the CPE Rtr has to live with it but 
the ISP may use something like a /55 that gives sufficient number of links in 
the home LAN.  I will reply to any more discussion on this thread once I reach 
Hiroshima. 

Hemant

-----Original Message-----
From: Dunn, Jeffrey H. [mailto:jdunn(_at_)mitre(_dot_)org] 
Sent: Friday, November 06, 2009 7:31 PM
To: Hemant Singh (shemant); Wes Beebee (wbeebee); Antonio Querubin
Cc: Thomas Narten; Fred Baker (fred); 6man-ads(_at_)tools(_dot_)ietf(_dot_)org; 
SAVI Mailing List; william(_dot_)allen(_dot_)simpson(_at_)gmail(_dot_)com; 
Hesham Soliman; IETF(_at_)core3(_dot_)amsl(_dot_)com; Erik Nordmark; 
savi-ads(_at_)tools(_dot_)ietf(_dot_)org; IPv6 Operations; Susan Thomson 
(sethomso); v6ops-ads(_at_)tools(_dot_)ietf(_dot_)org; Robin Mersh; Mailing 
List; Susan(_at_)core3(_dot_)amsl(_dot_)com; JINMEI Tatuya / 神明達哉; Dunn, 
Jeffrey H.
Subject: RE: Fwd: Broadband Forum liaison to IETF on IPv6 security

OK. Then the CPE router has a unique /64 for all of its broadcast domains? Does 
that mean that the customer needs to tell the ISP how many /64 prefixes they 
need?

Best Regards, 
  
Jeffrey Dunn 
Info Systems Eng., Lead 
MITRE Corporation.
(301) 448-6965 (mobile)


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