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find out what ip address and port a device is using

  • 12-07-2014 05:02PM
    #1
    irishgeo
    Registered Users, Registered Users 2 Posts: 9,778 ✭✭✭


    I want to confirm what address and port a credit card terminal is trying to access on my network. its not listed in the settings on the terminal.

    i have asked the supplier of the device and opened the ports they gave me but i am still cant get it to connect.

    so any software which would allow to track what address and port its trying to use?


Comments

  • #2
    same ol sh1te
    Closed Accounts Posts: 1,837 ✭✭✭same ol sh1te


    Do you have wireless access to the same network, if so get Fing on your smartphone to list all devices on your network. Brilliant tool
    http://www.overlooksoft.com/download


  • #3
    Mr. G
    Moderators, Technology & Internet Moderators Posts: 4,622 Mod ✭✭✭✭Mr. G


    You shouldn't need to open a port for it to connect. Have you checked the cable etc it's using?


  • #4
    ED E
    Registered Users, Registered Users 2 Posts: 36,094 ✭✭✭✭ED E


    Mr. G wrote: »
    You shouldn't need to open a port for it to connect. Have you checked the cable etc it's using?

    This. Only PoS stuff that needs ports open is stuff that takes inbound orders, like Just Eat/Eat Cities receipt units. CC machines open the connection for the transaction themselves.


  • #5
    irishgeo
    Registered Users, Registered Users 2 Posts: 9,778 ✭✭✭irishgeo


    It works on home broadband fine but not behind the corporate firewall.


  • #6
    ED E
    Registered Users, Registered Users 2 Posts: 36,094 ✭✭✭✭ED E


    irishgeo wrote: »
    It works on home broadband fine but not behind the corporate firewall.

    UPNP, I'd guess.

    Really whoever is providing the unit should be able to give you all the info, and if they have and its still not working you need to get your IT crowd involved. You dont want to misconfigure your sonicwall or similar and leave the company vulnerable.


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  • #7
    Mr. G
    Moderators, Technology & Internet Moderators Posts: 4,622 Mod ✭✭✭✭Mr. G


    Please don't forward ports to it. Fix the issue with the office firewall as ED E said. Better fix it now then leave it, especially if you are dealing with client information that may be left exposed if you don't know what you are doing.


  • #8
    Cuddlesworth
    Registered Users, Registered Users 2 Posts: 14,015 ✭✭✭✭Cuddlesworth


    irishgeo wrote: »
    It works on home broadband fine but not behind the corporate firewall.

    Then you should be able to look at the corp firewall and see what its trying to do.


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