LTM GTM Configuration

Hi

 

I am new in F5 and I am planing to confiure LTM& GTM in two different sites HQ and DR that host same applicaitons.

 

I have configured the following :

 

 

Data Center( HQ and DR )

 

Servers ( added LTM and GTM and configure I Query)

 

Virtual Server (for each Data Center)

 

Pools

 

Wide IP

 

Listeners

 

Links.

 

I need to know what else I need to configure to redirect the request to the DR in case of HQ Data center failure. and where i need to configure the DNS.

 

 

Thanks