Renew IP Configuration

import os

import ctypes

​

class disable_file_system_redirection:

    _disable = ctypes.windll.kernel32.Wow64DisableWow64FsRedirection

    _revert = ctypes.windll.kernel32.Wow64RevertWow64FsRedirection

    def __enter__(self):

        self.old_value = ctypes.c_long()

        self.success = self._disable(ctypes.byref(self.old_value))

    def __exit__(self, type, value, traceback):

        if self.success:

            self._revert(self.old_value)

​

with disable_file_system_redirection():

    release=os.popen('ipconfig /release').read();

    print(release);

    renew=os.popen('ipconfig /renew').read();

    print(renew);

​