> there was also a discussion whether DAD should be done only on > manually configured addresses, and not on MAC address derived and > random ones. no consensus in the room. Erik Nordmark suggested > "optimistic DAD", but there was no time to discuss it.
I hope I merely suggested that "optimistic DAD" be explored to better understand the issues and benefits. > optimistic DAD looks to me to be a good compromise. A possible implication of optimistic DAD (i.e. where an address is assigned to the interface and used before it is known whether it is a duplicate) is that - neighbor caches in order nodes will have the wrong information and need to be switched back to the correct, original information once DAD fails. - TCP connections might be reset (a packet arrives at the new node, which doesn't have the TCP state so it sends a reset; the real "owner" of the address has the TCP state) Erik -------------------------------------------------------------------- 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] --------------------------------------------------------------------
