On Fri, 9 Jul 2010, Tony Li wrote:
I respectfully disagree. All physical devices have had a MAC address (or equivalent) for quite some time now. Even the virtual devices are emulating Ethernet, so for all practical purposes, EUI-48 and EUI-64 are a clear and distinct identifier space.
... apart from D-Link who shipped residential NAT routers with identical MAC addresses and their customer support claimed to customers that "their devices were not unique enough" and wanted the customer to use their "clone PC address"-feature in the web interface, which let the NAT router copy the PC MAC address to use on the WAN interface, so again it wasn't unique.
In the real world, MAC addresses are not unique, they're just unique most of the time. Any scheme that depends on unique MAC addresses need to gracefully handle when they're not.
-- Mikael Abrahamsson email: [email protected] _______________________________________________ rrg mailing list [email protected] http://www.irtf.org/mailman/listinfo/rrg
