从 IPHostEntry 获取有效 IP

发布于 2024-10-18 20:18:26 字数 334 浏览 1 评论 0原文

我尝试使用此方法获取计算机的 IP 地址

        var ipadd = Dns.GetHostEntry(Dns.GetHostName());
        foreach (var ipAddress in ipadd.AddressList)
            Console.WriteLine("IP Address: {0}", ipAddress);

我的计算机中只有一张连接到路由器的网卡。它是 ipv4，但这一行代码给了我 4 个 IPAddress，其中 3 个是 ipv6，一个是 ipv4，这是有效的。我想问为什么会这样？

谢谢

原文

I tried to get the IPAddress of my computer using this

        var ipadd = Dns.GetHostEntry(Dns.GetHostName());
        foreach (var ipAddress in ipadd.AddressList)
            Console.WriteLine("IP Address: {0}", ipAddress);

I have only one network card in my computer which is connected to the router. It is ipv4 but this line of code gives me 4 IPAddress 3 of them are ipv6 and one is ipv4 which is the valid one. I like to ask why is that so ?

Thanks

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江心雾 2024-10-25 20:18:26

foreach (var addr in Dns.GetHostEntry(string.Empty).AddressList)
{
    if (addr.AddressFamily == AddressFamily.InterNetwork)
        Console.WriteLine("IPv4 Address: {0}", addr)
}

foreach (var addr in Dns.GetHostEntry(string.Empty).AddressList)
{
    if (addr.AddressFamily == AddressFamily.InterNetwork)
        Console.WriteLine("IPv4 Address: {0}", addr)
}

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