Can someone explain what a stun-p1 means?

My laptop often diconnects from the wifi despite my mobile still being connected fine. This evening my laptop did as I've described and as I've recently downloaded the fing app I decided to scan for any open ports whilst my laptop was playing up and the results came back with this:
Can anyone explain to me what a stun-p1 means and is it anything to be concerned about? I'm completely useless with internet related stuff so I just want to check it's nothing dodgy.


  • kltaylor
    kltaylor Member, Beta Tester Posts: 1,231
    1000 Comments 500 Likes 50 Answers 100 Awesomes
    HI @porridge_radio89 thanks for asking your question.
    A quick Google search resulted in the following information:

    Configuring and Troubleshooting Serial Tunneling (STUN)


    Serial Tunneling (STUN) is the tunneling of SDLC frames across a WAN. In the traditional systems network architecture (SNA) world, remote controllers are attached to the front-end processor (FEP) through a set of modems attached over POTS (Plain Old Telephone Service) or leased lines.

    I'd look around on your LAN devices to see which one(s) is/are manufactured by Cisco.  If this isn't a known device, you may want to consider toggling UPnP off and manually adding port forwards into your router as you need them.

    "There's a fine line between audacity and idiocy."
    -Warden Anastasia Luccio, Captain
    Robin_Ex_Fing[Deleted User]
  • ProTecK
    ProTecK Member Posts: 60
    Third Anniversary 10 Comments 5 Agrees First Answer
    Looking for a Cisco device would probably be a waste of time. That is a VoIP related service, used by more than Cisco. This was an open port of your laptop correct? It a pretty good indicator some type of communications software on the laptop is responsible. There are so many smaller programs that might be designed to run something like that in a supporting role for another application, only a portion of those would have easily searchable documentation online, it can run you in circles sometimes. Easiest way I know to track it down quickly is close the port in the firewall settings and wait to see what it breaks. 
  • Ace35
    Ace35 Member Posts: 5
    Second Anniversary Photogenic First Comment
    A slightly more techey way to see would to be (assuming you are running windows) down at the bottom left side in the search area type CMD and it should find "Command Prompt" app , right click on it and "run as administrator" . A black window will open, type the command "netstat -b" (without quotes), this should display a list of every program/port that currently open or in a listening state. Don't be alarmed at how long that list will be, add a space -f and it will look up the names of the websites that you are connected to. look for port 9100 and it should give you the name of the EXE that has created that open port. 
    Your mileage may vary, read all instructions before working with heavy equipment, my personal .02, its value may fluctuate with the reader ;)