Configure DNS

Configure DNS on each Firepower Threat Defense device in order to use remote access VPN. Without DNS, the devices cannot resolve AAA server names, named URLs, and CA Servers with FQDN or Hostnames. It can only resolve IP addresses.

Procedure

Step 1	Configure DNS server details and domain-lookup interfaces using the Platform Settings. For more information, see Configure DNS and DNS Server Group Objects.
Step 2	Configure split-tunnel in group policy to allow DNS traffic through remote access VPN tunnel if the DNS server is reachable through VNP network. For more information, see Configure Group Policy Objects.