[152655] in North American Network Operators' Group
Re: What is a link-local address?? WAS: Re: JUNOS forwards IPv6
daemon@ATHENA.MIT.EDU (Mark Andrews)
Sun May 6 18:09:16 2012
To: Matthew Petach <mpetach@netflight.com>
From: Mark Andrews <marka@isc.org>
In-reply-to: Your message of "Sun, 06 May 2012 08:25:06 MST."
<CAEmG1=q6aa_33L29fjf7M4S_TQA4ydUT2yo_X22d3q+xFOfSMg@mail.gmail.com>
Date: Mon, 07 May 2012 08:08:21 +1000
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
Any address withing FE80::/10 is a link local address, however when
you are constructing a link local address you sent bits [11..64]
to zero. It's quite common for a specification to only use a subset
of the reserved space which is what happens here.
Mark
--
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742 INTERNET: marka@isc.org
