Windows Deployment Services and DHCP both listen on ports 67 (IPv4) and 547 (IPv6) to detect the DHCP discover signal from ...

Windows Deployment Services and DHCP both listen on ports 67 (IPv4) and 547 (IPv6) to detect the DHCP discover signal from the client computer. If Windows Deployment Services and DHCP are running on the same computer, you should configure Windows Deployment Services to disable listening on ports 67 and 547. Also, you must add appropriate DHCP and DHCPv6 options to all DHCP scopes currently active on your DHCP server.