I needed to ping Proxmox but it didn't so, let's "ping" the web interface ( or any TCP IPv4 in sight really ). If it connects, there is something there. Not much of an example but I scanned my network in under 30 secs. Nice toy to have  Edit: added a hint of what may be at that IPv4 and comma delimited ports can be used. Edit2:  Version with IP and mask: for those that may need it. ( or just @MattyD  ) Edit3: Compiled it and placed it in the download area.