vbs 修改IP,DNS,网关

以下是API的实现方法
Public Function ChangeIP(IP As String, NM As String, GW As String, MDNS As String, SDNS As String) As String
'返回值说明:返回一个设置的中文说明.
Dim strComputer, objWMIService, colNetAdapters, strIPAddress, strSubnetMask
Dim strGateway, strGatewaymetric, strDNS, objNetAdapter, errEnable, errGateways, errDNS
strComputer = "."
Set objWMIService = GetObject("winmgmts:\\" & strComputer & "\root\cimv2")
Set colNetAdapters = objWMIService.ExecQuery("Select * from Win32_NetworkAdapterConfiguration where IPEnabled=TRUE")
strIPAddress = Array(IP) 'ip地址
strSubnetMask = Array(NM) '子网掩码
strGateway = Array(GW) '网关
strDNS = Array(MDNS, SDNS) '主DNS各备DNS
strGatewaymetric = Array(1)

For Each objNetAdapter In colNetAdapters

errEnable = objNetAdapter.EnableStatic(strIPAddress, strSubnetMask)
errGateways = objNetAdapter.SetGateways(strGateway, strGatewaymetric)
errDNS = objNetAdapter.SetDNSServerSearchOrder(strDNS)
If errEnable = 0 And errGateways = 0 And errDNS = 0 Then
ChangeIP = "设置成功"
Else
If errEnable = 0 Then
ChangeIP = "IP地址和子网掩码设置成功, "
Else
ChangeIP = "IP地址或子网掩码设置失败, "
End If
If errGateways = 0 Then
ChangeIP = ChangeIP & "默认网关设置成功, "
Else
ChangeIP = ChangeIP & "默认网关设置失败, "
End If
If errDNS = 0 Then
ChangeIP = ChangeIP & "DNS设置成功"
Else
ChangeIP = ChangeIP & "DNS设置失败"
End If
End If
Next

End Function

 

原理说明:
修改注册表.
HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Services\\Tcpip\\Parameters\\Interfaces\\
下的
IPAddress=(IP地址)
SubnetMask=(子网)
DefaultGateway=(默认网关)
EnableDHCP=0(关动态取得IP)

然后调用
DhcpNotifyConfigChange
使更改生效