[ANN] host-setup 4.0 released

[Matthew Seaman]

On 03/01/2012 17:59, Garrett Cooper wrote:
> 4. Prefixing the IPv6 address with fe80: generally means it's an IPv4
> -> IPv6 address (IIRC).

Nope.  That's a link-local address.  Any NIC can configure itself with
and address using that prefix and a host part generated from the MAC
address completely automatically, and thus communicate on any locally
attached network. (See RFC 5156 for the gory details.)

IPv4 mapped addresses are like this:

::ffff:192.0.2.0

(or you can express the 32 bits of the IPv4 address as two
colon-separated hex strings in the usual IPv6 idiom.)

	Cheers,

	Matthew


-- 
Dr Matthew J Seaman MA, D.Phil.                   7 Priory Courtyard
                                                  Flat 3
PGP: http://www.infracaninophile.co.uk/pgpkey     Ramsgate
JID: matthew at infracaninophile.co.uk               Kent, CT11 9PW

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