- In the case where an "L2" DHCP Relay Agent (one that does not set giaddr)

- In the case where an "L2" DHCP Relay Agent (one that does not set giaddr)
  was directly attached to the same broadcast domain as the DHCP server,
  the RFC3046 relay agent information option was not being returned to the
  relay in the server's replies.  This was fixed; the dhcp server no longer
  requires the giaddr to reply with relay agent information.  Note that
  this also improves compatibility with L2 devices that "intercept" DHCP
  packets and expect relay agent information even in unicast (renewal)
  replies. [ISC-Bugs #16762]