Polycom 1725-31424-001 manual Dhcp and the Polycom CX700 IP Phone, Dhcp Search Options

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Deployment Guide for the Polycom CX700 IP Phone

For the most up-to-date version of the Deploying Microsoft Office Communicator 2007 R2 Phone Edition documentation and the complete set of the Microsoft® Office Communications Server 2007 R2 online server and client documentation, see the Office Communications Server TechNet Library at http://go.microsoft.com/fwlink/?LinkID=132106.

DHCP and the Polycom CX700 IP Phone

All computers that are on a TCP/IP network must have an IP address for the network to work correctly. Generally, you can manually configure IP addresses at each computer, or you can install a Dynamic Host Configuration Protocol (DHCP) server that automatically assigns IP addresses to each client computer or device on the network. The Polycom CX700 phone is no exception and therefore can receive only DHCP-assigned IP addresses and requires no configuration on the device.

A DHCP client is any network-enabled device that enables you to communicate with a DHCP server to obtain dynamic, leased IP configuration and related optional information. The Polycom CX700 phone is a DHCP client.

DHCP Search Options

To complete unqualified domain name system (DNS) names that will be used to search and submit DNS queries at the client for resolution, you must have a list of DNS suffixes that can be appended to these DNS names. For DHCP clients, this can be set by assigning the DNS domain name option (Option 15) and providing a single DNS suffix for the client to append and use in searches.

In some circumstances it is preferable that a DHCP client be configured by using multiple DNS suffixes, supported with the use of DHCP Search Option 119.

DHCP Search Option 119 is passed from the DHCP server to the DHCP client to specify the domain search list used when resolving hostnames with DNS. DHCP Search Option 119 applies only to DNS and does not apply to other name resolution mechanisms.

DHCP Option

Description

 

 

015

Specifies the connection-specific DNS domain suffix to

 

be used by the DHCP client.

 

 

119

DNS Domain Search List option to specify the domain

 

search list used when resolving hostnames with DNS.

 

 

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Contents Deployment Guide for the Polycom CX700 IP Phone Trademark Information About This Guide Deployment Guide for the Polycom CX700 IP Phone Contents Deployment Guide for the Polycom CX700 IP Phone Page Dhcp and the Polycom CX700 IP Phone Dhcp Search OptionsDNS and the Polycom CX700 IP Phone Polycom CX700 Phone QueryingExchange Server 2007 Autodiscover Service NTP Time Provider NTP and the Polycom CX700 IP PhonePolycom CX700 Phone Querying of Exchange Server Server Security Framework Overview Root CA Certificate for the Polycom CX700 Phone Polycom CX700 Phone Certificates Trusted Authorities Cache Vendor Certificate Name Expiry Date Key Length Polycom CX700 Phone on Introduction Assumptions and TerminologyPage Deployment Guide for the Polycom CX700 IP Phone Background \Pool01Data\ClientUpdateStore\DeviceUpdates Page Action Examples / Comments Contoso.com\userAlias instead of just Contoso\userAlias Spnego Polycom CX700 Phone Upgrade Steps Summary Deployment Guide for the Polycom CX700 IP Phone Polycom CX700 Phone Upgrade Steps Details Set Environmental DependenciesConfigure Dhcp DNS Configure Certificates Upload certificate chain Use the Automated Method Page Verify Internal and External Download URLs ?xml version=1.0 ? Response Upgrade Polycom CX700 Phones from 1.0.199.123 to Cab File Deployment Guide for the Polycom CX700 IP Phone Upgrade Polycom CX700 Phones from 1.0.522.101 to Phone will reset and go to the calibration screen Page Deployment Guide for the Polycom CX700 IP Phone Troubleshooting the Polycom CX700 Phone Logs Used for Troubleshooting When to Use Dhcp Option Internal ExternalDeployment Guide Polycom CX700 Configuring Windows Server as an NTP Time Source Net stop w32time && net start w32time Enabling Automatic Certificate Enrollment For Windows Select CN=Configuration,DC=yourDomain,DC=com Deployment Guide Polycom CX700 Confirming the Current Software Version Deployment Guide Polycom CX700
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