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.