set ip=192.168.111.111
set mask=255.255.0.0
set gateway=192.168.0.254
set dns=221.6.4.66
if %ip%=="" exit
net stop dhcp
netsh add helper ifmon.dll
netsh interface ip set address "" static %ip% %mask% %gateway% auto
netsh interface ip set address "" static %ip% %mask% %gateway% auto
netsh interface ip set dns "" static %dns%
net start dhcp