Nortel Networks 4050 manual Appendix F Configuring Dhcp to auto-configure IP Phones

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Appendix F

Configuring DHCP to auto-configure IP Phones

The DHCP server and the IP Phone 2002, IP Phone 2004, and IP Phone 2007 can be configured so that the IP Phone automatically obtains its configuration data from the DHCP server. This feature reduces the administrative overhead associated with bringing a large number of IP Phones online.

In addition, the DHCP server and the IP Phone can be configured so that the

IP Phone can use the Auto VLAN Discovery feature, which allows the IP Phone to discover the Phone VLAN ID.

This appendix explains how to:

•configure the IP Phone to obtain its configuration data from a Windows 2000 Server DHCP server

•retrieve VLAN information required to take advantage of the Auto VLAN Discovery feature

This appendix is not intended to be a primer on how to set up a DHCP server. The reader is assumed to have a working knowledge of Windows 2000 Server DHCP servers. The appendix also does not describe the process used by the IP Phone to interact with the DHCP server or to boot itself into the Phone VLAN.

Note: It is assumed that the necessary DHCP scopes defining the range of addresses and lease duration have been created.

To take advantage of the Auto VLAN Discovery feature, two VLANs are required: one for the phone to boot into initially, in order to communicate with the DHCP server and learn the appropriate phone VLAN ID, and the second for the Phone VLAN itself.

Nortel Secure Network Access Switch 4050 User Guide