Hi Fernando, Am 06.02.2013 17:16, schrieb Fernando Gont: > On 02/06/2013 10:52 AM, Rémi Després wrote: >> >> - The reserved range is a tool to AVOID conflicts. It isn't, like DAD, a >> tool to RESOLVE them when they occur. > > DAD *detects* them, but does not resolve them (for instance, the last > "D" stands for detection). As a datapoint, all the v6 implementations I > know of support DAD, yet they do not resolve DAD failures when one is > encountered.
Partially true: it is "resolved" so that two hosts do not use the same address at the same time in this subnet. DAD does not specify how to get out of the DAD failure, e.g., retry with a new address etc. DAD resolves a conflict if one host has got already an address and another host tries to configure the same address. In this case the latter host will be usually left with an unusable address in state tentative/dad conflict. If two hosts try to configure the same address at the same time, both will not get a working address after detecting a duplicate address. I would say that the conflict is resolved, but the systems are not left in a state in which they can communicate thereafter. Regards, Roland -------------------------------------------------------------------- IETF IPv6 working group mailing list [email protected] Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------
