Using the DNS/DHCP Server's existing DNS configuration - BlueCat Address Manager - 9.2.0

Address Manager Administration Guide

prodname
BlueCat Address Manager
version_custom
9.2.0
If you prefer to use the DNS/DHCP Server's existing DNS configuration to resolve IPv4 DNS queries, you must set the forwarder in the site's namespace configuration with the server’s service IP address.
Note: If your existing DNS configuration has deployment options that restrict the resolution of IPv4 DNS queries, and the service point is enabled, you must add the 247.127.127.0/24 subnet to the Access Control List. All traffic forwarded by the service point to the DNS configuration will appear as an output of this subnet.