If your router model isn't close to the other versions, please use this general guide.
1. Log in to the router interface
Visit 192.168.1.1 and log in to your router with the username and password.
3. Enter DNS Numbers
Enter the following OpenDNS IP addresses in the Primary and Secondary fields.
Our DNS IP's follow:
208.67.222.222
208.67.220.220
4. Save your settings by clicking Apply
After clicking Apply, we highly suggest that you flush your DNS resolver cache and web browser caches to ensure that your new DNS configuration settings take immediate effect.