Automatic Private IP Addressing (APIPA)

Posted: March 4, 2011 in Active Directory, Internet Protocol, Networking, System Basics, System Information
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Automatic Private IP Addressing


Automatic Private IP Addressing (APIPA) is a feature introduced with Windows 2000; it is also included in Windows XP and Windows Server 2003.


APIPA allows a computer that is configured to obtain an automatic IP address to assign itself an address from a private range should no DHCP server be available. APIPA assigns addresses in the range through—a range reserved by Microsoft for just this purpose.


APIPA is really designed for small networks that don’t use a DHCP server. APIPA allows computers running Windows 2000, Windows Server 2003, or Windows XP to plug into a network and recognize one another with little configuration necessary. If your network uses a DHCP server and you see that a client has been assigned an address in the APIPA range, it means the client could not locate a DHCP server.


  1. Matthew says:

    Thanks . ciao

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