On Tue, 20 Aug 2002, Dave Thaler wrote:
> > -----Original Message-----
> > From: Margaret Wasserman [mailto:[EMAIL PROTECTED]]
> [...]
> > So, while you indicate that a link-local address may not be able to
> > reach all nodes on a subnet, isn't it also true that a subnet-local
> > address may not be able to reach all of the nodes on a link?
>[...]
> The closest question you could
> construct in practice is: "If a link has multiple subnet prefixes
> assigned to it, and I source from a global address in one of them, and
> the destination is a subnet-local multicast group, will another machine
> on the same link, which does not have an address in the same prefix,
> receive the packet."  The answer is yes it will (so the answer to your
> question is: no, not true).

I'll try to answer from a different perspective.  If the destination is a
subnet-local multicast group, it may not reach all of the nodes on a link.  
This is because nodes, currently, do not even know of such a multicast
group much less join it.

In theory it should go to every node, I think.

Is there something I've missed?

-- 
Pekka Savola                 "Tell me of difficulties surmounted,
Netcore Oy                   not those you stumble over and fall"
Systems. Networks. Security.  -- Robert Jordan: A Crown of Swords


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