Ubiquity UniFi Security Gateway 3P - OpenDNS configuration - Enable DHCP Guarding

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jnjewlz

August 18, 2018 03:50

I upgraded my home system to the new Ubiquity UniFi and had trouble forcing all DNS Traffic through OpenDNS Servers until I found the very easy solution.

1.  Login into the UniFi Controller
2.  Click the "Setting" gear in the lower left corner
3.  Click Networks
4.  Click the "Edit" pencil next to your corporate network
5.  Check "Enable DHCP guarding" and add the open DNS Servers
6.  Click "Save"

Hidden in plain sight so hopefully, it saves a few others a bit of drama.

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  tylergroce November 28, 2018 18:42

  Did you use IPv4 or Ipv6 settings or both? 

   

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  rotblitz November 28, 2018 19:39 (Edited November 28, 2018 19:39)

  Regardless of what jnjewlz did...

  If you have a dual-stack (IPv4 & IPv6) connection, then you configure DNSv6 from the following list of addresses:
  ::ffff:d043:dedc   ::ffff:d043:dcde   ::ffff:d043:dede   ::ffff:d043:dcdc

  If you have an IPv6-only connection, then you use the following DNSv6 resolver addresses:
  2620:119:35::35   2620:119:53::53
  Please note that your dashboard settings and stats are not being used then, but the default OpenDNS settings which is blocking phishing and some malware domains.
  See also https://support.opendns.com/hc/en-us/articles/227986667

  If you have an IPv4-only or dual-stack connection, then you clearly use the usual DNSv4 resolver addresses to configure the IPv4 side.

   

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  tylergroce November 28, 2018 19:56

  Thank you for your comment.

   

  I have a IPv4 connection: 

   

   

  Heres what I am doing but still having trouble. 

   

  Control Panel\All Control Panel Items\Network Connections -> Properties ->IPv4 -> Properties -> Use Following DNS Server addresses: Preferred DNS Server: 208.67.222.222, Alternate DNS Server: 208.67.220.220. Okay, Close.

   

  But it doesn't stick. 

   

  I also did this from my Unifi Controller, it shows up correctly when I go back in but I still show to be inactive on the Umbrella Dashboard. 

   

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  rotblitz November 28, 2018 20:32

  I'm confused.  This thread is about configuring OpenDNS on the Ubiquity UniFi Security Gateway, and you seem to refer to settings on a Windows computer now...

  Also, this forum is for OpenDNS (home) users, not for Umbrella users.  If you're an Umbrella user/customer, please open a support ticket at https://support.umbrella.com/hc/en-us/requests/new

  If you're an OpenDNS (home) user, then copy & paste the complete plain text output of the following diagnostic commands to here, so that I may see what your problem is:

  nslookup -type=txt debug.opendns.com.
  nslookup whoami.akamai.net.
  netsh interface ipv4 show config

   

   

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