One more point: One of the original motivations for disabling an interface if DAD fails for the LL address is that if you are running DAD on a LL address generated using the EUI-64 format, in the absence of a DOS attack, if DAD fails, that really means duplicate ethernet addresses are in use. In this case, the device is hosed and configuring another address won't result in a usable network. In fact, it probably makes things worse by creating problems that harder to diagnose than just shutting down the interface. The user will see a partially working network where some things work, and other things won't.
BTW, some of the above text might be worth putting into 2462bis as background information. Thomas -------------------------------------------------------------------- IETF IPv6 working group mailing list [EMAIL PROTECTED] Administrative Requests: https://www1.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------
