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DHCP Scopes

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  1. In the object list, right-click on DHCP Scopes and, from the shortcut menu, select New Scope. Alternatively, right click on an existing IP address range, and select Convert To DHCP Scope.
    The Scope Creation Wizard dialog appears. 


  2. Subnet. Enter the subnet in CIDR notation, e.g. 5.5.5.0/24, and click Next.
     
  3. Server and scope type. Select the type, either Single scope, Split scope, or Failover scope (only on Windows 2012 and newer DHCP servers) and the DHCP server to create the scope on.

    Info

    When you change the type to Failover scope, only Windows 2012 and newer servers are shown. 



  4. Select second server (Split scope) or Failover Relationship (Failover Scope). 

    Info

    This step is skipped if Single scope was selected, or if Failover Scope is selected and there is only one Failover Relationship on the selected DHCP server.

    Split scope:

    Failover scope:

  5. Address pool. Enter the address range for the address pool. By default, it is set to cover the entire scope.
    Single scope and Failover scope:
     
    Split scope: Additionally select the address pool split percentage allocated to the first server.
     

  6. Range properties. Enter the custom properties for the IP address range.
     

  7. Enabled or Disabled. 
    Single instance:

    Split scope or Failover scope:
     

  8. Active Directory Site selection. If you have enabled AD Sites and Subnets, the Wizard will ask you which AD site the new DHCP Scope should be associated to:
     

  9. Scope properties. 
    Microsoft DHCP Servers:
    If the scope is a part of a MS DHCP Superscope, enter the name of the Superscope here, or leave empty.  
     

    ISC DHCP Servers:
     

    Cisco DHCP Servers:
    The only configurable scope property is "Import All". When checked, it imports Dynamic Host Configuration Protocol (DHCP) option parameters into the DHCP server database. Refer to the Cisco IOS IP Addressing Command Reference document for more information.


  10. DNS Update Settings (only Microsoft DHCP servers)
     
     
  11. Save Comment:
     

  12. Summary: The changes the Wizard will perform are summarized here and applied once the user clicks "Finish". 
     

     

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