ss (IPv4 <code>'0.0.0.0'</code> or IPv6 <code>'::'</code>) can be
used to return control of the sockets default outgoing interface to the system
for future multicast packets.</p>
<h3><code>socket.setMulticastLoopback(flag)</code><span><a class="mark" href="#dgram_socket_setmulticastloopback_flag" id="dgram_socket_setmulticastloopback_flag">#</a></span></h3>
<div class="api_metadata">
<span>Added in: v0.3.8</span>
</div>
<ul>
<li><code>flag</code> <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScr