Multiple Dhcp Servers - Mitel 6800 Series Administrator's Manual

Configuring a Download Precedence Using the Mitel Web UI
Use the following procedure to configure a download precedence using the Mitel Web UI.
MITEL WEB UI
1. Click on Advanced Settings->Network->Advanced Network Settings.
2. In the "DHCP Download Options" field, select "Disabled" from the list of options.
Note: In the Mitel Web UI, the "Disabled" download option performs the same
function as the "-1" in the configuration files (ignores DHCP options).
3. Click Save Settings to save your setting.
4. Select Operation->Reset, and click Restart to reboot the phone.

MULTIPLE DHCP SERVERS

The IP phones can receive messages from multiple DHCP servers (up to a maximum of five
DHCP servers).
The phone sends DHCP discoveries every six seconds to the DHCP servers until it receives
a valid DHCP offer. Within the six second time interval, before the next discovery request, any
DCHP offers received by the phone from the DHCP servers are serviced in the order that they
are received. If the first DHCP offer contains configuration server information (Options 43, 66,
159 or 160), the offer is accepted and the phone stops listening for additional offers. If the offer
does not contain configuration server information, the phone continues to listen for DHCP
messages and reviews the next received offers until an offer containing configuration server
information is found. If no DHCP offers containing configuration server information are received
within the six second time interval, the DHCP offer that was received first is used.
Network Settings
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