Onfiguring Ption On Aindows 2000 Dhcp Erver; Overview - 3Com 3C10402B Administrator's Manual

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Overview

C
ONFIGURING
W
INDOWS
RFC 2132 (DHCP Options and BOOTP Vendor Extensions)
vendor-specific extensions to the DHCP protocol. It defines that option
codes in the range 128 through 254 are set aside for site-specific
extensions.
3Com telephones can receive their IP configuration from a DHCP server.
However, 3Com telephones need configuration information that is not
part of a standard DHCP response. You can use DHCP option 184 to
specify this extended information:
NCP IP Address — Each telephone must receive a download of
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operating settings from the Call Processor.
Alternate Server IP Address — Specifies a second location from which
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a telephone can receive its download. (Not used in an NBX system.)
Voice VLAN Configuration — Reserved for future use.
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Fail-Over Call Route Point — Reserved for future use.
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This appendix includes an example of how to configure option 184 on a
Windows 2000 server that has been configured to run DHCP server
software. It describes these topics:
Creating Option 184
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Editing Option 184 Values
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Activating Option 184
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This appendix describes how to configure the Call Processor IP address
only. The extended options are not used in an NBX environment. The
information in this appendix pertains only to a Windows 2000 server. The
configuration instructions differ for other DHCP servers. This appendix
describes only the configuration of option 184, not how to install or
perform basic configuration of the Windows 2000 server.
O
PTION
2000 DHCP S
184
ON A
ERVER
allows for