you can set static entries in EdgeOS.
Always set DHCP to give out the ERL for DNS. set service dhcp-server shared-network-name LAN subnet 10.254.103.0/24 dns-server 10.254.103.1 Always set the ERL to look at itself for a DNS (127.0.0.1 set system name-server 127.0.0.1 Make sure that DNS is listening on your LAN ports. set service dns forwarding listen-on eth1 set service dns forwarding listen-on eth1.2 Set DNS forward lookup to whatever. set service dns forwarding name-server 10.254.103.4 # my Pi-Hole set service dns forwarding name-server 1.1.1.1 If oyu are on a domain, tell EdgeOS to forward those to the DC. set service dns forwarding options server=/ad.domain.com/10.254.0.21 set service dns forwarding options server=/domain.local/10.254.0.21 set service dns forwarding options server=/domain/10.254.0.21 Set up your static DNS entries. set system static-host-mapping host-name nas inet 10.254.103.7