Off topic, here's a better way to create your request:

use HTTP::Request::Common qw( POST );

$req = POST 'http://www.somesite.com/index.php?admin/networks', [
   name        => $name,
   address     => $address,
   zip         => $zip,
   savenetwork => 'Save Network',
];
[download]

It creates an HTTP::Request object as before. The advantages is that it handles encoding for you and it's easier to read.