On Thu, 17 Jul 2003 kuznet@xxxxxxxxxxxxx wrote:
> > > > What happens when you do "ping6 3FFE:FFFF:A:B::1" ?
> ping did, does and will work and I do not understand what you want
> to say or ask. Do you want to know how it works?
> Well, IPv6 stack looks up the address in routing tables, finds the route,
> sees that it is on-link, sends NDISC, receiver replies, we create a frame
> and send the echo request. To continue? :-)
(Sorry, it seems I've caused a lot of confusion in some parts of this
thread by typoeing link-local address when I used link-layer address..
So, assume you have 3FFE:FFFF:A:B::/64 prefix on link. On a host on that
link, you've manually configured the next-hop to be the router on that
The procedure to obtain the knowledge on where to send packets whose
next-hop is 3FFE:FFFF:A:B::1 seems quite simple, similar to ping6.
As to obtaining the link-*local* address, there are several procedures
none of which I would recomment. Checking the source address of a ND
packet (e.g. in the ping6 example above), or using a protocol like ICMP
name information queries (draft-ietf-ipngwg-icmp-name-lookups-10.txt).
Pekka Savola "You each name yourselves king, yet the
Netcore Oy kingdom bleeds."
Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings