Disclaimer:
Due to the wide variety of devices available and potential variations in their firmware, the information presented below may or may not be accurate. For this same reason, OpenDNS support will generally not be able to provide device-specific assistance beyond what is provided below. If you need further assistance specific to your device, please contact either the manufacturer's support team, or your ISP if you are using leased equipment.
1. Launch the AirPort Utility.
The AirPort Utility can be found in the Utilities folder within your Applications folder.
4. Change the configuration settings.
Click “Internet” to configure your router’s internet settings.

6. Enter the second DNS resolver address.
Enter 208.67.220.220 in the “Secondary DNS Server:” field.

7. Save your settings.
Click “Update” to apply your settings.

8. Ensure that your Time Capsule is not in Bridge mode. Your OpenDNS configuration will not work if the Time Capsule is in Bridge Mode!
9. Cache Flushing.
To ensure that OpenDNS is working properly for you, please flush your browser and DNS cache by following the instructions below:
http://www.opendns.com/support/article/67
http://www.opendns.com/support/article/68
NEXT: Test your new settings →