修改子网掩码和网关，IP不变的批处理写法

@echo off

::备份相关网络配置

netsh -c interface dump > c:\old_net_info.txt

for /f "tokens=2" %%a in ('systeminfo^|findstr "连接名"') do (set NIC=%%a)

for /f "tokens=2" %%b in ('systeminfo^|findstr "01]%: "') do (set IP=%%b)

set MASK="255.255.252.0"

set GW="10.153.96.1"

set GM=1

echo %NIC%

echo %IP%

echo %MASK%

echo %GW%

echo %GM%

@echo 正在修改网络配置的子网掩码、网关.......

::修改现有机器的子网掩码和网关地址

netsh interface ip set address %NIC% static %IP% %MASK% %GW% %GM%

echo ------------------------------------

echo %NIC%的设置已全部完成，配置如下：

echo IP地址：%IP%

echo 默认网关：%GW%

echo 子网掩码：%MASK%

echo ---------------------------

pause