Change the routing status of a name suffix

Applies To: Windows Server 2003, Windows Server 2003 R2, Windows Server 2003 with SP1, Windows Server 2003 with SP2

To change the routing status of a name suffix

Open Active Directory Domains and Trusts.
In the console tree, right-click the domain node for the domain you want to administer, and then click Properties.
On the Trusts tab, under either Domains trusted by this domain (outgoing trusts) or Domains that trust this domain (incoming trusts), click the forest trust that you want to administer, and then click Properties.
On the Name Suffix Routing tab, under Name suffixes in the x.x forest, click the suffix for which you want to modify the routing status, and then click Edit.
In Existing name suffixes in x.x, click the suffix that you want to modify, and then click Enable or Disable.

Notes

To perform this procedure, you must be a member of the Administrators group on the local computer, or you must have been delegated the appropriate authority. If the computer is joined to a domain, members of the Domain Admins group might be able to perform this procedure. As a security best practice, consider using Run as to perform this procedure.
To open Active Directory Domains and Trusts, click Start, click Control Panel, double-click Administrative Tools, and then double-click Active Directory Domains and Trusts.
You cannot enable a name suffix that is in conflict. If the conflict is with a local UPN name suffix, you must remove the local user principal name (UPN) name suffix before you can enable the routing name. If the conflict is with a name that is claimed by another trust partner, you must disable the name in the other trust before it can be enabled for this trust.
To view a log of name suffixes, Domain Name System (DNS) names, NetBIOS names and the status that is associated with this trust, click Save As. This log can assist you in troubleshooting authentication problems.

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