http://www.waynedeng.com/blog/showlog.asp?log_id=485&cat_id=26
vbs脚本的功能非常强大， 管理系统简单方便！下面的脚本win2000和winxp都可以使用，win2003没有测试过，
应该也没有问题。如果需要经常切换网关，或是ip，这个脚本是最方便的了。稍微修改一下甚至可以做到1分钟变一次ip。
changeip.vbs
strComputer = "."
Set objWMIService = GetObject("winmgmts:\\" & strComputer & "\root\cimv2")
Set colNetAdapters = objWMIService.ExecQuery _
("Select * from Win32_NetworkAdapterConfiguration where IPEnabled=TRUE")
For Each objNetAdapter in colNetAdapters
sip=objNetAdapter.IPAddress
strIPAddress = sip '保持原来的ip，如果需要修改ip为192.168.0.200：strIPAddress = Array("192.168.0.200")
strSubnetMask = Array("255.255.255.0")
strGateway = Array("192.168.0.254") '修改网关为192.168.0.254
strGatewayMetric = Array(1)
errEnable = objNetAdapter.EnableStatic(strIPAddress, strSubnetMask)
errGateways = objNetAdapter.SetGateways(strGateway, strGatewaymetric)
If errEnable = 0 Then
WScript.Echo "The IP address has been changed."
Else
WScript.Echo "The IP address could not be changed."
End If
exit for '只修改第一个网卡的设置
Next
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