subnet prefix length > 64 breaks IPv6?

Valdis.Kletnieks at vt.edu Valdis.Kletnieks at vt.edu
Tue Dec 27 17:35:42 CST 2011


On Wed, 28 Dec 2011 04:58:19 +0530, Glen Kent said:

> I had assumed that nodes derive their link local address from the
> Route Advertisements. They derive their least significant 64 bytes
> from their MACs and the most significant 64 from the prefix announced
> in the RAs.

No, on Ethernet-ish networks the link-local is derived from an 'fe80::' and the MAC.
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