>multicastInterface</code> argument
is not specified, the operating system will choose one interface and will add
membership to it. To add membership to every available interface, call
<code>socket.addSourceSpecificMembership()</code> multiple times, once per interface.</p>
<p>When called on an unbound socket, this method will implicitly bind to a random
port, listening on all interfaces.</p>
<h3><code>socket.address()</code><span><a class="mark" href="#dgram_socket_address" id="dgram_socket_address">#</a><