> -----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?
Since the boundary of a zone goes through a node, not through a link (ref: scoped addr arch doc), then no it is not true. The "subnet-local" scope contains all interfaces on the link regardless of what addresses are on those interfaces. However, there are no subnet-local unicast addresses (only multicast ones) so the question is moot in practice. 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). -Dave -------------------------------------------------------------------- IETF IPng Working Group Mailing List IPng Home Page: http://playground.sun.com/ipng FTP archive: ftp://playground.sun.com/pub/ipng Direct all administrative requests to [EMAIL PROTECTED] --------------------------------------------------------------------
