DNS Server Configuration Get DNS server information from the selected WAN interface OR enter static DNS server IP addresses. If only a single PVC with IPoA or static MER protocol is configured, you must enter static DNS server IP addresses. Obtain DNS info from a WAN interface: WAN Interface selected: Use the following Static DNS IP address: Primary DNS server: Secondary DNS server: Select the configured WAN interface for IPv6 DNS server information OR enter the static IPv6 DNS server Addresses. Note that selecting a WAN interface for IPv6 DNS server will enable DHCPv6 Client on that interface. Obtain IPv6 DNS info from a WAN interface: WAN Interface selected: Use the following Static IPv6 DNS address: Primary IPv6 DNS server: Secondary IPv6 DNS server: