Blocking DNS queries With IP Range.

  • Hello,

    Need some help I need to block dns queries using OpenDns.

    I have managed to setup OpenDns and test and it works.

    What I want is to block a IP range from to Tried Multiple formats and failed.



  • LAYER 8 Global Moderator

    That is not how you would block it.

    Create an alias to include that subset of your network.

  • That's not how it works.  When Destination is a network, you must supply the network address and CIDR mask eg.  You can't put a range there.  Using gives you - usable so use that instead and modify your network allocation, or you could also do which gives you - usable.  Check the Invert Match box and it should work for you.