专家坐堂-[求助]请问怎么用代码设置ip和dns？Foxtable(狐表) - 新一代数据库软件，完美融合Access、Foxpro、Excel、vb.net之优势，人人都能掌握的快速软件开发工具!

要使用VB.NET获取和修改本机的IP和DNS，你可以使用System.Net.NetworkInformation命名空间中的类来完成这些操作。具体步骤如下：

1. 获取本机的IP和DNS信息：

```vb.net

Imports System.Net.NetworkInformation

\' 获取本机的IP和DNS信息

Public Sub GetIPAndDNSInfo()

\' 获取本机的网络接口信息

Dim networkInterfaces As NetworkInterface() = NetworkInterface.GetAllNetworkInterfaces()

For Each networkInterface As NetworkInterface In networkInterfaces

Console.WriteLine("Interface Name: " & networkInterface.Name)

Console.WriteLine(" Description: " & networkInterface.Description)

Console.WriteLine(" Status: " & networkInterface.OperationalStatus.ToString())

\' 获取IP地址信息

Dim ipProperties As IPInterfaceProperties = networkInterface.GetIPProperties()

Dim unicastAddresses As UnicastIPAddressInformationCollection = ipProperties.UnicastAddresses

For Each unicastAddress As UnicastIPAddressInformation In unicastAddresses

Console.WriteLine(" IP Address: " & unicastAddress.Address.ToString())

Console.WriteLine(" Subnet Mask: " & unicastAddress.IPv4Mask.ToString())

\' 获取DNS服务器信息

Dim dnsServers As IPAddressCollection = ipProperties.DnsAddresses

For Each dnsServer As IPAddress In dnsServers

Console.WriteLine(" DNS Server: " & dnsServer.ToString())

Console.WriteLine()

End Sub

```

2. 修改本机的IP和DNS信息：

**注意：修改本机的IP和DNS信息是非常敏感和危险的操作，需要管理员权限，慎重操作。以下示例代码仅供演示，不建议在生产环境中使用。**

```vb.net

Imports System.Net.NetworkInformation

Imports System.Net

\' 修改本机的IP和DNS信息

Public Sub SetIPAndDNSInfo(ByVal ipAddress As String, ByVal subnetMask As String, ByVal dnsServers As String())

Dim networkInterfaces As NetworkInterface() = NetworkInterface.GetAllNetworkInterfaces()

For Each networkInterface As NetworkInterface In networkInterfaces

If networkInterface.NetworkInterfaceType = NetworkInterfaceType.Ethernet Then \' 仅修改以太网接口

\' 禁用网络接口

networkInterface.Disable()

\' 修改IP地址和子网掩码

Dim ipProperties As IPInterfaceProperties = networkInterface.GetIPProperties()

Dim ipAddresses As UnicastIPAddressInformationCollection = ipProperties.UnicastAddresses

For Each ipAddressInfo As UnicastIPAddressInformation In ipAddresses

If ipAddressInfo.Address.AddressFamily = AddressFamily.InterNetwork Then

ipProperties.UnicastAddresses.Remove(ipAddressInfo)

End If

Dim newIPAddress As IPAddress = IPAddress.Parse(ipAddress)

Dim newSubnetMask As IPAddress = IPAddress.Parse(subnetMask)

Dim newIPInfo As New UnicastIPAddressInformation(newIPAddress, newSubnetMask)

ipProperties.UnicastAddresses.Add(newIPInfo)

\' 修改DNS服务器

Dim dnsAddresses As IPAddressCollection = ipProperties.DnsAddresses

dnsAddresses.Clear()

For Each dnsServer As String In dnsServers

dnsAddresses.Add(IPAddress.Parse(dnsServer))

\' 使修改生效

networkInterface.Enable()

Console.WriteLine("IP and DNS settings modified successfully.")

Exit Sub \' 如果有多个以太网接口，修改完第一个接口就退出循环

End If

Console.WriteLine("No Ethernet interface found.")

End Sub

```

使用上述代码时，请确保以管理员身份运行程序，以便进行网络接口的禁用和启用操作。此外，由于修改IP和DNS可能导致网络连接中断或其他问题，请谨慎使用，并确保备份重要数据和配置。