Appendix E: Alternate Dhcp Setup; Alternate Dhcp Servers For Avaya Ip Phone Installation; Using Windows 2000 Server; Checking For Dhcp - Avaya IP Office 3.2 Installation Manual

Appendix E: Alternate DHCP Setup

Alternate DHCP Servers for Avaya IP Phone Installation

The recommended installation method for H.323 IP phones uses a DHCP server. When 5 or less H.323
IP phones are being supported, the DHCP can be performed by the IP Office Unit itself. However, if
more than 5 H.323 IP phones are being supported, a separate DHCP server must be used.
This document outlines, as an example, the basic steps for using a Windows 2000 Server as the DHCP
server for IP phone installation. However, the principles of defining a scope is applicable to most DHCP
servers.
You will need the following information from the customer's network manager:
•
The IP address range and subnet mask the H.323 IP phones should use.
•
The IP Gateway address.
• The DNS domain name, DNS server address and the WINS server address.
• The DHCP lease time.
• The IP address of the IP Office unit.
• The IP address of the PC running Manager (this PC acts as a TFTP server for the H.323 IP
phones during installation).
For information on LAN administration and configuration, see the 4600 Series IP Telephone LAN
Administrator's Guide. Though written from the perspective of H.323 IP phones on Definity and
MultiVantage systems, many aspects are applicable to IP Office systems.

Using Windows 2000 Server

1. Checking for DHCP

1. On the Windows 2000 Server, select Start | Program | Administrative Tools | Computer
Management.
2. Under Services and Applications in the Computer Management Tree, locate DHCP.
3. If DHCP is not present then you need to install the DHCP components for Windows 2000. Refer
to the Microsoft documentation.
Phone Installation Guide
IP Office 3.2 15-601042 Issue 11e (27th June 2006)
Page 43