Basic network settings, Dhcp, Basic network settings -4 – Aastra Telecom SIP 480I User Manual
Page 60: Dhcp -4, Configuring the ip phones
Basic Network Settings
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41-001129-00 Rev 09, Release 1.4.1
IP Phone Administrator Guide
Configuring the IP Phones
Basic Network Settings
This section describes the basic network settings on the IP phone.
DHCP
The IP phone is capable of querying a DHCP server, allowing a network
administrator a centralized and automated method of configuring various network
parameters for the phone. If DHCP is enabled, the IP phone requests the following
network information:
•
Subnet Mask
•
Gateway (i.e. router)
•
Domain Name Server (DNS)
•
Broadcast Address
•
Network Time Protocol Server
•
IP Address
•
TFTP Server Name
The network administrator chooses which of these parameters (if any) are
supplied to the IP phone by the DHCP server. The administrator must configure
the phone manually to provide any required network parameters not supplied by
the DHCP server.
Note:
For DHCP to automatically populate the IP address or domain
name for the TFTP server, your DHCP server must support Option 66.
Option 66 is responsible for forwarding the TFTP server 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 the TFTP server into your IP phone configuration.