[Fingbox] How does Fingbox block device?

Answers

• Marc Moderator, Beta Tester Posts: 2,153

  

  ✭✭✭✭✭✭

  May 2020

  @Claudio, fingBox works on its own.  See this thread... https://help.fing.com/knowledge-base/fingbox-block-unwanted-devices-network/

  
  

  “ To block devices and measure device traffic, Fingbox leverages low level (data-link layer) network programming and packet injections to make sure the device is not able to reach the Internet and other local network devices. By using similar technology Fingbox is able to seamlessly intercept and route devices traffic, thus it’s able to temporarily measure the bandwidth usage that a selected number of devices do in your network, to provide you with specific and crucial insights.“

  Thats Daphnee, she's a good dog...

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• Robin Administrator, Fing Team Posts: 3,734

  

  admin

  May 2020

  Hi @Claudio
  The way the Fingbox works is through ARP poisoning and DNS Spoofing.  So what is happening is that when you block a single device, the computer DHCP address and DNS entries gets changed and pointed to the Fingbox.  So this device is blocked from getting to the internet or internal resources. 
   
  For more information on ARP poisoning and DNS Spoofing see the following links: 
  Blocking is done by DNS/Blocking Spoofing. 
  https://en.wikipedia.org/wiki/DNS_blocking 
   
  The Fingbox/App work to pause things by a process called ARP poisoning/Blocking. 
  https://en.wikipedia.org/wiki/IP_address_spoofing 
  
  

  Robin (Admin at Fing)
  Getting Started? Please refer to Community guidelines & Community User Guides("Helping Hand"). HAPPY POSTING!!!

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• Claudio Member Posts: 2

  

  ✭

  May 2020 edited May 2020

  But this is "hacking"...if I connect FingBox on corporate LAN  can block anyone.
  That's ok, for my personal LAN it is perfect!
  
  Why is there "comaptibility router page" if FingBox is indipendet from the router?
  https://help.fing.io/knowledge-base/router-extenders-access-point-compatibility/?_ga=2.181298215.1488799528.1588294090-1112212092.1588294090
  
  Thanks
  

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• Robin Administrator, Fing Team Posts: 3,734

  

  admin

  May 2020

  Claudio said:

  But this is "hacking"...if I connect FingBox on corporate LAN  can block anyone.
  That's ok, for my personal LAN it is perfect!
  
  Why is there "comaptibility router page" if FingBox is indipendet from the router?
  https://help.fing.io/knowledge-base/router-extenders-access-point-compatibility/?_ga=2.181298215.1488799528.1588294090-1112212092.1588294090
  
  Thanks
  

  Our Fing App and Fingbox simply helps the user to get more control over the network. For corporate, I believe you will need admin privileges installing any device which controls the network, and thus on the corporate environment, a commercial Fingbox will not be that effective and that's why our B2B process is separate. 
  To address your other query, compatible routers list helps the user to know which router may affect Fingbox functioning and some features like Pause/Block wont work with them

  Robin (Admin at Fing)
  Getting Started? Please refer to Community guidelines & Community User Guides("Helping Hand"). HAPPY POSTING!!!

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