How to Change DNS on Zyxel (USG FLEX / ATP / NWA)
By [FILL IN], [FILL IN] · Last updated
Set DNS on the Zyxel interfaces and DHCP.
Before you start
You need a FirewallDNS account (see pricing). Sign in to your dashboard, register your public IP address and copy your DNS server addresses. Replace <FIREWALLDNS-PRIMARY> and <FIREWALLDNS-SECONDARY> below with them.
Step by step
- Configuration > Network > Interface > edit LAN.
- Under DHCP Setting set First DNS <FIREWALLDNS-PRIMARY> and Second DNS <FIREWALLDNS-SECONDARY> (Custom Defined).
- Configuration > System > DNS: add the servers as Domain Zone Forwarders for "*".
- Apply.
Verify it works
- Renew DHCP on a client (Windows:
ipconfig /renew, macOS: reconnect Wi-Fi). - Run
nslookup example.comand check which server answered. - Open the live log in your dashboard. New lookups should appear within seconds.