Merge branch 'stable-3.1' of git.ispconfig.org:ispconfig/ispconfig3 into st...

Till Brehm

2016-05-27 51a7b5e29a1cbf53e9858a6b11aa0be1f8fc59d2

 server/plugins-available/network_settings_plugin.inc.php

@@ -110,7 +110,7 @@
                  /*
                   * don't insert the main-ip again!
                   */
                  if ($rec['ip_address'] != $server_config['ip_address'])
                  if ($rec['ip_address'] != $server_config['ip_address'] && filter_var($rec['ip_address'], FILTER_VALIDATE_IP, FILTER_FLAG_IPV4))
                  {
                     $ip_records[$n] = array(
                        'id' => $n,
@@ -188,7 +188,7 @@
                  /*
                   * don't insert the main-ip again!
                   */
                  if ($rec['ip_address'] != $server_config['ip_address'])
                  if ($rec['ip_address'] != $server_config['ip_address'] && filter_var($rec['ip_address'], FILTER_VALIDATE_IP, FILTER_FLAG_IPV4))
                  {
                     $ip_records[$n] = array(
                        'id' => $n,