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41-001343-02 REV04 – 05.2014 4-5
Enabling/Disabling DHCP Using the Aastra Web UI
Use the following procedure to enable/disable DHCP using the Aastra Web UI.
DHCP Options 60, 66, and 43 Server Configurations
Option 66
The IP Phones support download protocols as referenced in RFC2131 and RFC1541 (TFTP, FTP, HTTP,. HTTPS) to support
DHCP option 66. Option 66 is part of the DHCP Offer message that the DHCP server generates to tell the phone which con-
figuration server it should use to download new firmware and configuration files.
For DHCP to automatically populate the IP address or domain name for the servers, your DHCP server must support
Option 66. Option 66 is responsible for forwarding the server’s IP address or domain name to the phone automatically. If
your DHCP server does not support Option 66, you must manually enter the IP address or domain name for your applica-
ble configuration server into your IP phone configuration.
Options 60 and 43
The Aastra phones also support Option 60 and Option 43 as referenced in RFC 2132.
Option 60 (Vendor Class Identifier) provides the DHCP server with a unique identifier for each phone model. This enables
a system administrator to send the phone a customized Server Configuration in option 43.
The table below lists the identifier values for each phone model.
Aastra Web UI
1. Click on Advanced Settings->Network->Basic Network Settings.
2. Enable the "DHCP" field by checking the check box. (Disable this field by unchecking the box).
3. Click Save Settings to save your settings.
Model Identifier Value
9143i AastraIPPhone9143i
9480i AastraIPPhone9480i
9480i CT AastraIPPhone9480iCT
6730i AastraIPPhone6730i
6731i AastraIPPhone6731i
6735i AastraIPPhone6735i
6737i AastraIPPhone6737i