Several Deep Edge functions use DNS, including alert email messages and URL filtering. Specify the IP addresses of the DNS servers to which Deep Edge connects. DNS server IP addresses are usually supplied by your ISP.

You can configure Deep Edge to obtain DNS server addresses automatically. To obtain these addresses automatically, at least one Deep Edge interface must use the DHCP (or PPPoE) addressing mode. For configuration details, see About DHCP.

Deep Edge can provide DNS Forwarding on their interfaces. Hosts on the attached network use the interface IP address as their DNS server. DNS requests sent to the interface are forwarded to the configured DNS server addresses or that Deep Edge automatically obtained.

Users can enable and disable DNS forwarding in Deep Edge or specify a name server to use local DNS or customized DNS.