On Feb 28, 2011, at 5:44 AM, Dobbins, Roland wrote: > > On Feb 28, 2011, at 8:40 PM, Jim Gettys wrote: > >> Again, having a permanently known identifier being broadcast all the time is >> a potentially a serious security/safety issue. > > > We already have this with MAC addresses, unless folks bother to periodically > change them, do we not? > MAC addresses don't generally leave the local broadcast domain.
Having a MAC address as a permanent identifier is a very different problem from having that MAC address go into a layer 3 protocol field. Owen