On 2011-02-28, at 08:44, 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?
Only between hosts that are in the same layer-2 broadcast domain. By embedding the MAC into the layer-3 address, the concern is that the information becomes accessible Internet-wide. Joe
