FlushIpNetTable function

The FlushIpNetTable function deletes all ARP entries for the specified interface from the ARP table on the local computer.

Syntax

DWORD FlushIpNetTable(
  _In_ DWORD dwIfIndex
);

Parameters

dwIfIndex [in]

The index of the interface for which to delete all ARP entries.

Return value

The function returns NO_ERROR (zero) if the function is successful.

If the function fails, the return value is one of the following error codes.

Remarks

To retrieve the ARP table, call the GetIpNetTable function.

On Windows Vista and later, the FlushIpNetTable function can only be called by a user logged on as a member of the Administrators group. If FlushIpNetTable is called by a user that is not a member of the Administrators group, the function call will fail and ERROR_ACCESS_DENIED is returned. This function can also fail because of user account control (UAC) on Windows Vista and later. If an application that contains this function is executed by a user logged on as a member of the Administrators group other than the built-in Administrator, this call will fail unless the application has been marked in the manifest file with a requestedExecutionLevel set to requireAdministrator. If the application on Windows Vista and later lacks this manifest file, a user logged on as a member of the Administrators group other than the built-in Administrator must then be executing the application in an enhanced shell as the built-in Administrator (RunAs administrator) for this function to succeed.

Requirements

See also

IP Helper Start Page

IP Helper Function Reference

CreateIpNetEntry

DeleteIpNetEntry

GetIfTable

GetIpNetTable