On Apr 2, 2014, at 4:26 PM, <sthaug at nethelp.no> <sthaug at nethelp.no> wrote: > I can give an IPv4 real life example - thousands of DHCP clients (DSL > modems) with *all* of them sending the same client id. I needed to > explicitly patch ISC DHCP to ignore the client id in order to make > this work. This doesn't sound like a DHCPv6 bug.