Configuring Option 43

To configure DHCP (Dynamic Host Configuration Protocol) option 43 using the Windows Server 2012 R2 DHCP, IPv4 server utility:

  1. In the DHCP server utility, right-click the DHCP server icon and choose Define Vendor Classes.
    You will create a new vendor class to program the DHCP server to recognize the VCI ExtremeWireless <AP model name>.
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    Define Vendor Classes
    Graphics/DefineVendorClasses.png
    The DHCP Vendor Classes window displays.
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    DHCP Vendor Classes
    Graphics/DefineVendorClasses_list.png
  2. Click Add to create the new class.
    The New Class window displays.
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    New Class
    Graphics/NewClass_dialog.png
  3. In the Display name field, enter a name. In this example, AP3965 is used as the display name.
  4. In the Description field, enter a short description of the vendor class: AP3965.
  5. Add the Vendor Class Identifier string. Click the ASCII field, and enter the appropriate value (for example, AP3965).
  6. Click OK.
    The new class is created.
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    DHCP Vendor Classes
    Graphics/NewClass_created.png
  7. Click Close.
  8. In the DHCP server, IPv4 utility, right-click the server icon and select Set Predefined Options to add an entry for the WLAN controller sub-option for the newly created vendor class.
    The sub-option code type and the data format is used to deliver the vendor specific information to the APs.
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    Set Predefined Options
    Graphics/set_preDefinedOptions.png
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    Predefined Options and Values
    Graphics/preDefined_options.png
  9. In the Option class field, select the value you configured for the vendor class and click Add.
    The Option Type window displays.
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    Option Type
    Graphics/Option_Type.png
  10. Enter a value in the Name field.
  11. In the Data type field, select String.
  12. In the Code field, enter the sub-option value 1.
  13. Enter a description in the Description field (Optional).
  14. Click OK.
    The new predefined option is displayed in the Predefined Options and Values window.
  15. Click OK.
    You have created the vendor class and sub-option type needed in order to support controller discovery.