+--------+   Unicast     +-----------+  +---------+  +---------+
 | Remote | Communication | Discovery |  | Network |  | Network |
 | Client |---- . . . ----|   Proxy   |  | Printer |  | Camera  |
 +--------+               +-----------+  +---------+  +---------+
      |                         |             |            |
------------            --------------------------------------------
                       Multicast-capable LAN segment (e.g., Ethernet)