Question

C#中获取多网卡指定IPv4地址的MAC地址是什么？

Answer 1

private void GetIP()  

{  

string hostName = Dns.GetHostName();//本机名   

//System.Net.IPAddress[] addressList = Dns.GetHostByName(hostName).AddressList;//会警告GetHostByName()已过期，我运行时且只返回了一个IPv4的地址

System.Net.IPAddress[] addressList = Dns.GetHostAddresses(hostName);//会返回所有地址，包括IPv4和IPv6 

foreach (IPAddress ip in addressList)  

{  

listBox1.Items.Add(ip.ToString());  

}  

}

Answer 2

private void ShowAdapterInfo()
{
NetworkInterface[] adapters = NetworkInterface.GetAllNetworkInterfaces();
lst_NetworkAdapter.Items.Add("适配器个数：" + adapters.Length);
int index = 0;
foreach (NetworkInterface adapter in adapters)
{
index++;
//显示网络适配器描述信息、名称、类型、速度、MAC 地址
lst_NetworkAdapter.Items.Add("---------------------第" + index + "个适配器信息---------------------");
lst_NetworkAdapter.Items.Add("描述信息：" + adapter.Name);
lst_NetworkAdapter.Items.Add("类型：" + adapter.NetworkInterfaceType);
lst_NetworkAdapter.Items.Add("速度：" + adapter.Speed / 1000 / 1000 + "MB");
lst_NetworkAdapter.Items.Add("MAC 地址：" + adapter.GetPhysicalAddress());

IPInterfaceProperties IPInterfaceProperties = adapter.GetIPProperties();
UnicastIPAddressInformationCollection UnicastIPAddressInformationCollection = IPInterfaceProperties.UnicastAddresses;
foreach (UnicastIPAddressInformation UnicastIPAddressInformation in UnicastIPAddressInformationCollection)
{
if (UnicastIPAddressInformation.Address.AddressFamily.ToString() == ProtocolFamily.InterNetwork.ToString())
{
lst_NetworkAdapter.Items.Add("IP地址：" +UnicastIPAddressInformation.Address.ToString()+ "\n");
}
}
}
}

上述程序能显示所有网络设备的信息，你可以根据需要加以裁剪。程序在多的电脑上已经通过，我也需要这个功能，也花了不少时间才搞定。