Google searching not successful; how do I set up the DHCP server "dns settings" to push from an XG to a remote Red60 (i.e. client laptop needs to see our domain suffix + name servers)

Hi, What to do? I have a RED20 working correct with Xg Firewall 18.x - when I connect a laptop in LAN port, receive correct IP address through XG DHCP server - can access the remote network I have a Sophos APX320 Wifi access point connected…