Please Simplify Using OpenDNS for me!

jeremy2121 · ‎08-07-2018

I am using OpenDNS to block content on only one of many computers using my WiFi router. First, I had to use a new unique IP address to even get to the settings in OpenDNS. I thought that I could enter the IP of the computer I wanted to control and adjust from there. Am I wrong? Thank you.

rotblitz · ‎08-08-2018

Yes, you are wrong. If you want to use OpenDNS on one device only, you configure the OpenDNS resolver addresses on this one device only, not on the router. OpenDNS sees just your one public IP address to associate your DNS lookups with your dashboard settings. They do not see any network internals like the private IP addresses of specific devices.

jeremy2121 · ‎08-08-2018

Thank you for responding. However, I'm still confused. OpenDNS is only allowing me to add a network with the IP Address it is providing me. The address matches nothing that I have. I have the filter set to the highest level, and nothing is being blocked; not on the computer that I am using to adjust OpenDNS, nor on any other device using the router. When I try to add a network/ip address using an address of any of my devices, I get a message saying "You cannot add a network in private IP space." I'm not the most computer-literate guy out there, but I know a little, and this has me stumped. What am I missing?

Thanks,

-Jeremy

rotblitz · ‎08-09-2018

"The address matches nothing that I have."

The IP address to be registered at https://dashboard.opendns.com/settings/ should be the one from the command output:

nslookup myip.opendns.com.

Ideally this IP address should match the one at http://myip.dnsomatic.com/

"nothing is being blocked"

Yes, you either do not use OpenDNS at all, or you didn't register your public IP address.

"When I try to add a network/ip address using an address of any of my devices, I get a message saying "You cannot add a network in private IP space.""

Yes, as I said. You cannot use private IP addresses. These are relevant LAN internal only, not for the outside world.

If you want, you can post a screen shot of https://dashboard.opendns.com/settings/ here. And you can post the complete plain text output of the following diagnostic command:

nslookup -type=txt debug.opendns.com.

jeremy2121 · ‎08-09-2018

Thank you. I got it working by entering the DNS addresses in Windows. Did nothing in the router alone. Not sure why. All of this was only a test to get it working on an iPad, which is my next challenge.

Thanks for your help.

rotblitz · ‎08-11-2018

"Did nothing in the router alone. Not sure why."

Either the firmware of your router is buggy, or you entered the resolver addresses at the wrong place. Or you had another DNS service configured on the computer which would overwrite the router settings.

It's hard to say without seeing the command output and the screen shot I asked for.