在菜單中的【工程】—【引用】下,添加“Microsoft WMI Scripting V1.1 Library”,然后在Form1窗體上添加1個(gè)Combo1、Text1(0)、Text1(1)、Text1(2)、Text1(3)和Command1、Command2,代碼如下:

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Option Explicit
Dim objSWbemServices As SWbemServices
Dim objSWbemObjectSet As SWbemObjectSet
Dim objSWbemObject As SWbemObject
'Text1(0)為IP地址、Text1(1)為子網(wǎng)掩碼、Text1(2)為缺省網(wǎng)關(guān)、Text1(3)為DNS
Private Sub Form_Load()
Set objSWbemServices = GetObject("winmgmts:")
Set objSWbemObjectSet = objSWbemServices.ExecQuery("Select * From Win32_NetworkAdapterConfiguration Where IPEnabled=TRUE")
For Each objSWbemObject In objSWbemObjectSet
Combo1.AddItem objSWbemObject.Description '添加本機(jī)上已經(jīng)安裝了TCP/IP協(xié)議的網(wǎng)卡
Next
Combo1.Text = Combo1.List(0)
Combo1.ListIndex = 0
End Sub
Private Sub Form_Unload(Cancel As Integer)
Set objSWbemServices = Nothing
Set objSWbemObjectSet = Nothing
Set objSWbemObject = Nothing
End Sub
'當(dāng)選擇了網(wǎng)卡后,顯示當(dāng)前所選網(wǎng)卡的設(shè)置
Private Sub Combo1_Click()
Set objSWbemObjectSet = objSWbemServices.ExecQuery("Select * From Win32_NetworkAdapterConfiguration Where Description='" Combo1.Text "'")
For Each objSWbemObject In objSWbemObjectSet
If objSWbemObject.DHCPEnabled Then
Text1(0).Text = ""
Text1(1).Text = ""
Text1(2).Text = ""
If IsNull(objSWbemObject.DNSServerSearchOrder) Then
Text1(3).Text = ""
Else
Text1(3).Text = objSWbemObject.DNSServerSearchOrder(0)
End If
Else
Text1(0).Text = objSWbemObject.IPAddress(0)
Text1(1).Text = objSWbemObject.IPSubnet(0)
Text1(2).Text = objSWbemObject.DefaultIPGateway(0)
Text1(3).Text = objSWbemObject.DNSServerSearchOrder(0)
End If
Next
End Sub
'設(shè)置網(wǎng)卡的IP地址、子網(wǎng)掩碼、缺省網(wǎng)關(guān)和DNS
Private Sub Command1_Click()
Set objSWbemObjectSet = objSWbemServices.ExecQuery("Select * From Win32_NetworkAdapterConfiguration Where Description='" Combo1.Text "'")
For Each objSWbemObject In objSWbemObjectSet
objSWbemObject.EnableStatic Array(Text1(0).Text), Array(Text1(1).Text)
objSWbemObject.SetGateways Array(Text1(2).Text)
objSWbemObject.SetDNSServerSearchOrder Array(Text1(3).Text)
Next
End Sub
Private Sub Command2_Click()
Unload Me
End Sub
Public Function EnumNetworkAdapters() As String
Try
Dim query As System.Management.ManagementObjectSearcher = New System.Management.ManagementObjectSearcher("SELECT * FROM Win32_NetworkAdapterConfiguration")
Dim queryCollection As System.Management.ManagementObjectCollection = query.Get()
Dim mo As New System.Management.ManagementObject
For Each mo In queryCollection
If IsDBNull(mo.Item("Description")) = False Then
EnumNetworkAdapters = mo.Item("Description") "|||"
End If
If IsDBNull(mo.Item("macaddress")) = False Then
If mo.Item("macaddress") "" Then
EnumNetworkAdapters = mo.Item("macaddress") "|||"
End If
End If
If IsDBNull(mo.Item("IPAddress")) = False Then
Dim temp As String
temp = Join(mo.Item("IPAddress"), ".")
If temp "" Then
EnumNetworkAdapters = temp "|||"
End If
End If
Next
Catch err AS Exception
EnumNetworkAdapters = err.Message err.StackTrace
End Try
End Function
如電腦使用Win7系統(tǒng),可按以下方法設(shè)置DNS:您右鍵點(diǎn)擊電腦桌面的“網(wǎng)絡(luò)”圖標(biāo) ,選擇“屬性” >選擇“控制面板” >在“網(wǎng)絡(luò)和共享中心”中可看到當(dāng)前的網(wǎng)絡(luò)狀況,點(diǎn)擊左邊的“更改適配器設(shè)置” >右鍵單擊“本地連接”,選擇“屬性” >選擇“internet協(xié)議版本4(TCP/IPv4)”,點(diǎn)擊“屬性” >選擇“使用下列DNS服務(wù)器地址”,輸入“首選”及“備用”DNS地址,最后點(diǎn)擊“確認(rèn)”即可。
溫馨提示:每個(gè)地市的DNS地址參數(shù)不同,建議您可聯(lián)系人工客服或前往營(yíng)業(yè)廳進(jìn)行咨詢了解。
做exe程序獲取本機(jī)IP地址用
System.Net.Dns.GetHostByName(System.Net.Dns.GetHostName()).AddressList
做web程序獲取客戶端的IP地址用
HttpContext.Current.Request.ServerVariables("REMOTE_ADDR"])
設(shè)置方法:
1.點(diǎn)擊電腦左下角“開(kāi)始”,接著點(diǎn)擊開(kāi)始界面右欄出現(xiàn)的“控制面板”
2.在控制面板界面點(diǎn)擊選擇“網(wǎng)絡(luò)和internet”。
3.接著點(diǎn)擊選擇“網(wǎng)絡(luò)和共享中心”。
4.在新的界面點(diǎn)擊選擇左側(cè)的“更改適配器設(shè)置”。
5.找到無(wú)線網(wǎng)絡(luò)連接后,鼠標(biāo)右鍵單擊選擇“屬性”。
6.在屬性界面的“網(wǎng)絡(luò)”選項(xiàng)卡內(nèi)勾選“internet協(xié)議版本4”,接著繼續(xù)點(diǎn)擊右下角的“屬性”。
7.在“常規(guī)”選項(xiàng)卡內(nèi)勾選“自動(dòng)獲得IP地址”與“自動(dòng)獲得DNS服務(wù)器地址”,或者自行設(shè)置地址,然后點(diǎn)擊”確定”即可。
本文名稱:vb.net設(shè)置網(wǎng)卡ip的簡(jiǎn)單介紹
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