> > Duplicate MAC addresses are regularly seen in the wild. > > It's important to remember that DAD is link local. It is only checking > whether the same address occurs on the local link. Duplicate MAC > addresses are not actually a problem as long as the duplicates are not > on the same link. If the duplicates ARE on the same link, then you have > a real problem at layer 2 anyway. The same link local address, based on > a MAC, is also a real problem if it's duplicated, for much the same > reason.
We use the 1:1 VLAN model for our customers, so in that sense I agree with you - these duplicates would not be a problem in our case. If we had used the N:1 VLAN model instead, it could be a very real problem. Steinar Haug, Nethelp consulting, sth...@nethelp.no -------------------------------------------------------------------- IETF IPv6 working group mailing list ipv6@ietf.org Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------
