Block Teamviewer

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Machiko
Machiko Posts: 3  Freshman Member
First Comment Fifth Anniversary
edited April 2021 in Security
Hi, I have a Firewall USG-310 and I need to block access to Teamviewer only for the countering computers. Can I set this up?

All Replies

  • PeterUK
    PeterUK Posts: 3,866  Guru Member
    100 Answers 2500 Comments Friend Collector Seventh Anniversary
    TeamViewer use TCP and UDP connections over port 5938 so guess you can block that. 

    Are you trying to blocked it for remotely to local or locally to outbound?   
  • Machiko
    Machiko Posts: 3  Freshman Member
    First Comment Fifth Anniversary
    locally to outbound
  • PeterUK
    PeterUK Posts: 3,866  Guru Member
    100 Answers 2500 Comments Friend Collector Seventh Anniversary
    So yes make two service with TCP 5938 and UDP 5938 (you can then group in TeamViewer) then in policy control have rule from LAN1 to WAN with group TeamViewer for service and deny. 
  • Machiko
    Machiko Posts: 3  Freshman Member
    First Comment Fifth Anniversary
    Thank you very nicely, I'll go so set up.

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