Create a subnet

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

To create a subnet

  1. Open Active Directory Sites and Services.

  2. In the console tree, right-click Subnets, and then click New Subnet.


    • Active Directory Sites and Services/Sites/Subnets
  3. In Address, type the subnet address.

  4. In Mask, type the subnet mask that describes the range of addresses included in this subnet.

  5. Under Select a site object for this subnet, click the site to associate with this subnet, and then click OK.


  • To perform this procedure, you must be a member of the Domain Admins group or the Enterprise Admins group in Active Directory, or you must have been delegated the appropriate authority. As a security best practice, consider using Run as to perform this procedure. For more information, see Default local groups, Default groups, and Using Run as.

  • To open Active Directory Sites and Services, click Start, click Control Panel, double-click Administrative Tools, and then double-click Active Directory Sites and Services.

Information about functional differences

  • Your server might function differently based on the version and edition of the operating system that is installed, your account permissions, and your menu settings. For more information, see Viewing Help on the Web.

See Also


Sites overview
IP addressing
Associate a subnet with a site
When to establish a single or separate sites