On Fri, 4 Jun 2004, Erik Nordmark wrote: > > No, each subscriber is allowed to have multiple MAC addresses (but > > each of those MAC addresses get their own IP address and are isolated > > from the others) -- at least for xDSL. > > But each subscriber has a separate subnet prefix, right? > Or how does broadcast work?
The subnet prefix is shared. > Or are you talking about the broken configuration when each subscriber > sees e.g. a /24 subnet, but some of the IP addresses in that subnet > are allocated to other subscribers whom they can't talk do (because some > filtering blocks the ARP packets?) ARP is blocked between hosts in the same subnet, and the router proxy-arp's for everyone else, so they can still communicate. I think this draft explains this somewhat: draft-melsen-mac-forced-fwd-01.txt (I've only glanced through it so I'm not 100% sure whether it's it) -- Pekka Savola "You each name yourselves king, yet the Netcore Oy kingdom bleeds." Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings -------------------------------------------------------------------- IETF IPv6 working group mailing list [EMAIL PROTECTED] Administrative Requests: https://www1.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------
