dhccra and dhclient from branch built, but...

[Francis Dupont]

from dnsmasq man:

      -z, --bind-interfaces
              On systems which support it, dnsmasq binds the wildcard address,
              even when it is listening on only some interfaces. It then  dis-
              cards  requests  that it shouldn't reply to. This has the advan-
              tage of working even when interfaces  come  and  go  and  change
              address.  This  option  forces  dnsmasq  to really bind only the
              interfaces it is listening on. About the only time when this  is
              useful  is  when running another nameserver (or another instance
              of dnsmasq) on  the  same  machine.  Setting  this  option  also
              enables multiple instances of dnsmasq which provide DHCP service
              to run in the same machine.

The last sentence is about what we want.
Please try (even I fixed the CRA too.

Thanks

Francis Dupont <fdupont at isc.org>