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        How To Enable Publishing Of APIPA Records In DNS Server

Section(s): Admin , Admin
Published on Mar 02, 2011.
Last Modified on Jan 09, 2010.
Last Modified by Nirmal Sharma.
Rating: Not Rated

This article explains how you can use a small registry hack to enable building of APIPA records in DNS Server.

By default, DNS Servers do not publish or create DNS Resource Records (A) for APIPA Addresses. APIPA Addresses start with 169.x.x.x. These IP Addresses get assigned to the Network Card which are set to obtain IP Addresses from DHCP Server and when DHCP Server is unable to assign any IP Addresses. DNS Server do not creates the A Resource Record in the DNS database for these addresses. You might need to enable this for some reasons in your production environment.

To enable DNS Server to register A Records for APIPA, you need to change the following registry entry value to 1:

KEY Name: HKLM\System\CurrentControlSet\Services\DNS\Parameters
Entry Name: PublishAutonet
Type: REG_DWORD
Value: 0 (by default), (0=disabled, 1=enabled)

Setting value of PublishAutonet to 1 instructs DNS Server to build Resource Records for APIPA.

About Nirmal Sharma

Nirmal is a Microsoft MVP in Directory Services and working as a Technical Architect/Consultant. He has been involved in Microsoft Technologies since 1994 and followed the progression of Microsoft Operating Systems and software. He is specialized in Directory Services, Microsoft Clustering, SQL, MOM, Exchange and Citrix. In his spare time, he likes to help others and write "internal" technical articles, white papers and tips on various Microsoft technologies. You can contact him at nirmal_sharma@mvps.org.