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Port Deletion

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Important  The Native 802.11 Wireless LAN interface is deprecated in Windows 10 and later. Please use the WLAN Device Driver Interface (WDI) instead. For more information about WDI, see WLAN Universal Windows driver model.

 

The operating system deletes the port for the current association with the access point (AP) or peer station under the following conditions:

  • The miniport driver performs an explicit disassociation operation. For more information about this operation, see Explicit Disassociation Operations.

    In this situation, the operating system deletes the port when the miniport driver makes an NDIS_STATUS_DOT11_DISASSOCIATION indication.

  • The miniport driver performs an implicit disassociation operation. For more information about this operation, see Implicit Disassociation Operations.

    In this situation, the operating system deletes the port when the miniport driver makes an NDIS_STATUS_DOT11_ASSOCIATION_START indication under the following conditions:

    • The miniport driver performs an association operation by reassociating with the same AP or peer station. In this situation, the operating system deletes the port for the previous association and creates a new one for the reassociation.

    • The miniport driver performs an association operation with another AP during a roaming operation. In this situation, the operating system deletes the port for the association with the first AP and creates a port for the association with the new AP.

      For more information about the roaming operation, see Roaming Operations.

    For more information about the association operation, see Association Operations.

If the independent hardware vendor (IHV) installed an IHV Extensions DLL to manage the port-based authentication, the operating system notifies the DLL of the port deletion through a call to the DLL's Dot11ExtIhvStopPostAssociate function.

Note  If the operating system deletes a port following a disassociation operation by the miniport driver, the operating system will not issue a set request of OID_DOT11_PORT_STATE_NOTIFICATION to notify the miniport driver about the port deletion. In this situation, the miniport driver must assume that the port will be deleted when it performs the disassociation operation.

 

For more information about the IHV Extensions DLL, see Native 802.11 IHV Extensions DLL.