Acceptable prefix sizes for Windows Vista/7

[Frank Bulk]

Thanks.  Sounds like Netgear has to fix that, then.  They've already been informed.  They probably only ever tested with PDs of /64.

Frank

-----Original Message-----
From: Erik Kline [mailto:ek at google.com] 
Sent: Tuesday, February 15, 2011 11:27 PM
To: frnkblk at iname.com
Cc: ipv6-ops at lists.cluenet.de
Subject: Re: Acceptable prefix sizes for Windows Vista/7

> Does Windows possibly have a requirement that the advertised prefix only be a /64 in order for SLAAC to work?

I would think that this would be the expected behaviour actually.  I
would be surprised if other operating systems didn't behave similarly
for Ethernet interfaces.

I see that http://tools.ietf.org/html/rfc4862#section-5.5.3 says you
can do math (128 -n), but it looks like this paragraph may be trumping
things, since EUI-64s are, well, 64bits:

    If the sum of the prefix length and interface identifier length
does not equal 128 bits, the Prefix Information option MUST be
ignored.