I've installed SqueezeCenter on a ubuntu machine and the xPL plugin is not working correctly. It uses 127.0.1.1 as $localip. The installed xPL Hub ignores this client since it uses the external ip for comparison. So the xPL plugin never gets xPL messages forwarded.

fix:
package Slim::Plugin::xPL::Plugin;

replace line 55-57:
====
 my $computername = Slim::Utils::Network::hostName();

 $localip = inet_ntoa((gethostbyname($computername))[4]);
====
with this:
====
 $localip = Slim::Utils::Network::hostAddr;
====
to use exactly the same external ip address for this plugin as for the SqueezeCenter.