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\"After deploying a large number of wireless laptop computers on the network, Ta

ID: 3755385 • Letter: #

Question

"After deploying a large number of wireless laptop computers on the network, Taylor, the IT director at Contoso, Ltd. decides to use DHCP to enable the laptop users to move from one subnet to another without having to manually reconfigure their IP addresses. Soon after the DHCP deployment, however, Taylor notices that some of the IP address scopes are being depleted, resulting in some computers being unable to connect to a new subnet. What can Taylor do to resolve this without altering the network's subnetting?"

Explanation / Answer

A DHCP server can enable dynamic updates in the DNS namespace for any one of its clients that support these updates. Scope clients can use the DNS dynamic update protocol to update their host name-to-address mapping information whenever changes occur to their DHCP-assigned address. (This mapping information is stored in zones on the DNS server.) A DHCP server can perform updates on behalf of its DHCP clients to any DNS server, but it must first supply proper credentials.

Quote from:
DHCP: Credentials for DNS update should be configured if secure dynamic DNS update is enabled and the domain controller is on the same host as the DHCP server
http://technet.microsoft.com/en-us/library/ee941181(v=ws.10).aspx

Some related KB:
Chttp://technet.microsoft.com/en-us/library/cc775839(v=ws.10).aspxonfigure DNS dynamic update credentials

Some related KB:
Chttp://technet.microsoft.com/en-us/library/cc775839(v=ws.10).aspxonfigure  

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