In dynamic environments, network endpoints
have dynamic addresses and often use FQDNs to represent the addresses
in routing and forwarding. The firewall now supports an FQDN in
three additional networking functions: a static route next hop,
a policy-based forwarding (PBF) next hop, and a BGP peer address.
Using FQDNs reduces configuration and management overhead.
Also,
in order to simplify provisioning, you can use an FQDN (instead
of statically assigning an IP address to a static IP next hop, PBF
next hop, or BGP peer) and the FQDN resolution can change from location
to location. Service providers often tend to map the FQDN to an
IP address based on the location and deployment requirements. For
example, if you are a service provider, you can provide FQDNs for
accessing cloud services and resolve these to the IP address of
the closest server for the client (based on the client’s geo-location),
so that the same FQDN can be used globally for the connection to
the cloud service.