DNS request can provide a single IP? and then change it to some other IP?
Folks, We run a few services in Active/Passive mode out of our Primary/Backup Data Centers.
Consider an application, Oracle. The External DNS has a NS record pointing this hostname to our GTM devices in our Data Center. When the applications runs out of the Primary Data Center we keep that IP address as active and when the application runs out of the Backup Data Center we keep that IP address as active.
Sometimes we have customers who have allowed these IP addresses on there corporate firewalls and want to allow only the Primary Data Center IP address.
Due to this they raise complaints when we do to our Backup Data center.
Is there some way to tackle this at our end? i.e. the Customer allows only the Primary Data Center IP address and when the request lands to the GTM the GTM changes this IP to the IP address of the Backup Data Center.
Any suggestions?
Thanks, N.