Are other ISPs besides Comcast able to use Comcast's DNS server addresses of 220.127.116.11 & 18.104.22.168?
An organization I am working for has switched over to using Comcast fiber optics as its primary internet service provider (ISP). We also have a second internet service provider (Etheric Networks (https://ethericnetworks.com/
) which provides satellite dish based internet services.
Our internet service is set up in a failover configuration using a SonicWALL TZ600 router so that if our primary Comcast fiber optic internet service fails then our internet service will automatically switch over to Etheric until the Comast fiber optic service is restored.
We would like to continue to use the static external DNS server addresses of 22.214.171.124 and 126.96.36.199 in place if our internet service ever switches over to Etheric should the Comcast fiber optic internet service become unavailable.
Our question is if our internet service switches over to using the Etheric internet service will the external IP DNS server addresses of 188.8.131.52 and 184.108.40.206 still be valid and provide timely DNS name resolution?
Or is there a different type of method we should be using to handle our internet service and DNS name resolution switch over?