IP address change

@echo off
:start
set /p first="Input 1 or 2：　"
if %first% == 1 (
	netsh interface ip set address name = "local area connection" source = static addr = 172.16.16.5 mask = 255.255.0.0 gateway = 172.16.0.1 gwmetric = 0
	netsh interface ip set dnsservers "local area connection" static 172.16.16.5 primary no
	netsh interface ip add dnsservers "local area connection" 219.148.204.66 index = 2 no
) else (
  	netsh interface ip set address name = "local area connection" source = static addr = 192.168.122.66 mask = 255.255.255.128 gateway = 192.168.101.2 gwmetric = 0
	netsh interface ip set dnsservers "local area connection" static 192.168.101.2 primary no
	netsh interface ip add dnsservers "local area connection" 219.148.204.66 index = 2 no
)