Skydog routers are advanced small business routers which build in the ability to do content filtering. Therefore, changing the DNS server alone isn't enough to distribute this to the end users connecting to the router. Instead, OpenDNS will need to be added as a custom DNS server for filtering and then added to the filtering schedule (per network).
1. Within the filters section you'll see the following option (and that the default is that it's using the SkyDog services for DNS). Adding and applying the custom OpenDNS DNS settings should allow you to use OpenDNS from within these content settings going forward.
2. Once OpenDNS is added as a Custom DNS Service, you can now pull up the filtering settings. To begin, click Edit Schedule under the Filtering tab. In this case, OpenDNS filtering is applying during the Brown times as configured on this example. Select this OpenDNS setting added in step 1 and "paint" it over the hours you wish to apply OpenDNS filtering. In this case, red is no network access at all and blue is the default. To set up OpenDNS, paint over the filter times with OpenDNS as seen in step 3.
Step 3: Confirm that OpenDNS is "painted" over the times and days you wish to apply filtering. In this sample case, brown is OpenDNS and red is no network access (overnight).
Okay, what's next?
Having problems with the set up? Please visit our blog post for troubleshooting the top issues some users experience: http://blog.opendns.com/2014/12/12/five-questions-top-support-requests-answered/
If you're still experiencing difficulties, flush your caches using the "Test your settings" section. Then download and run our diagnostic tool, and click Run Test. After the test completes, copy and paste the URL into this ticket. If you are experiencing difficulties copying the URL from the diagnostic tool, please use the steps at http://www.take-a-screenshot.org to take a screenshot of the diagnostic tool after it finishes.
The URL should start with http://opendnsupdate.appspot.com/d/######.
Next, send us a support ticket at http://support.opendns.com and we'll be in touch with you soon.