I have a cable line and a fiber connection to my small business network. Both have static IPs. I have my Firewall configured to route to internal servers from either connection. I have failover configured on my firewall that if one line goes down, the other will take over.
How does automatic failover work from a public DNS perspective? My public DNS is hosted by Network Solutions. I currently have each sub.domain associated with a public ip from each source.
sub.domain.com - 22.214.171.124 (Cable)
sub.domain.com - 444.444.444.444 (Fiber)
sub2.domain.com - 126.96.36.199 (Cable)
sub2.domain.com - 445.445.445.445 (Fiber)
My fiber line is currently down. Only 1/2 of my remote endpoints can find their way home. Over a few hours more found there way home but not all. I called Network Solutions who informed me that they don't rollover from one to the other IP if one is down.
How is this normaly handled??