LDAP Deployment Considerations / Obtaining Object ID Numbers

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When creating new object classes and attributes, the OID numbers should be registered. Most large commercial companies will probably want their own arc (that is, a parent OID tree, which you can branch from any way you like).

Getting your own OID is fairly easy. You can go to ANSI (American National Standards Institute) http://www.ansi.org and pay $1000 for a number, or you can get one for free from the Internet Assigned Numbers Authority at http://www.iana.org.