> Is it something special with the KAME stack?

link-local addresses are specific ton a particular interface; on a
multi-homed host, you need something to distinguish between
interfaces..

KAME embeds an interface index into link-local addresses which gets
stripped out before the packet hits the wire.

the fe80:1:: means "link local on i/f 1"
fe80:2:: would be "link local on i/f 2".

so, link-local addresses for interface N appears in the host looking like:

	fe80:N::wwww:xxxx:yyyy:zzzz

but on the wire as:

	fe80::wwww:xxxx:yyyy:zzzz

I got the impression from earlier discussions on the topic that this
is one of those "seemed like a good idea at the time..." hacks.

					- Bill