Configure DNS Server Policy Settings

DNS is a critical service for ExtremeCloud managed devices and is required to permit each device to connect to and communicate with ExtremeCloud‌ IQ and related services.

Out of the box, and by default, unconfigured APs and switches find the DNS server to use from your DHCP server.

Note

For APs — If your DHCP server does not advertise a DNS server, the AP will instead use the following DNS servers from OpenDNS:

208.67.222.222
208.67.220.220

The usability of OpenDNS servers can vary depending on the country. Consult OpenDNS documentation for information on excluded countries.

Either your DHCP-defined DNS server or the two default DNS servers must be reachable outbound on UDP port 53 by each device connecting to ExtremeCloud‌ IQ.

The DNS server settings defined in this part of the network policy configuration workflow are written to the configuration of your managed device after initial connection.

Note

If enabled, these DNS server settings will override the default DNS behaviors of your managed device. The DNS servers defined here must be reachable from your managed devices on outbound on UDP port 53.

Use this task to configure DNS Server Policy Settings for a network policy.

Go to Configure > Network Policies.
Select an existing network policy, and then select , or select to create a new policy.
From the Policy Settings menu, select DNS Server.
Toggle the DNS Server setting to ON.
Optional: To use existing DNS server settings, choose a DNS object from the menu.
Configure the DNS Server Settings.
To add a new DNS server, select .
1. Type the IP address of the new DNS server.
2. Select ADD.
You can add up to three servers. The first entry is the primary server. The secondary entry is the secondary server, and the third entry is the tertiary server. Use the arrows in the Order column to change the order.
If you want to use classification, select Apply DNS servers to devices via classification.
Select SAVE DNS SERVER.