Re: [v6ops] A proposal for draft-ietf-6man-rfc4291bis-07 - FE80:: means FE80::/9

otroan@employees.org Tue, 07 March 2017 21:34 UTC

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Subject: Re: [v6ops] A proposal for draft-ietf-6man-rfc4291bis-07 - FE80:: means FE80::/9
Date: Tue, 7 Mar 2017 22:33:58 +0100
In-Reply-To: <a11c6b9b-ae5c-7c7d-a71c-cc5d8b80d047@gmail.com>
To: Alexandre Petrescu <alexandre.petrescu@gmail.com>
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> Thanks to this discussion, I would like to promote the following fact that I did not know:
> 
> If you say "FE80::" without telling the prefix length, that actually means "FE80::/9" (and not FE80::/10, nor FE80::/64).  Because 0xFE80  is "1111 1110 1000 0000" in binary representation.

No it doesn't.

FE80:: means FE80:0000:0000:0000:0000:0000:0000:0000

Cheers,
Ole