本文介绍了.NET Core 2.x 如何获取当前活动的本地网络 IPv4 地址?的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
在其上运行 WebService.就像我可以在 cmd.exe >ipconfig:
On which is running the WebService. Like the one I can get in cmd.exe > ipconfig:
我想要实现的是Kestrel的自动IP配置，比如:
What I would like to achieve is automatic IP configuration of Kestrel, like:
.UseKestrel(opts =>
{
opts.Listen(/*LocalIPv4ActiveAddress*/, 5000);
})
所以我可以用不同的活动网络接口(WiFi || 以太网)和不同的本地网络 IP 地址切换我的开发机器.
So I can switch my development machines with different active network interfaces (WiFi || Ethernet) and different local network IP addresses.
推荐答案
你可以试试这样的:
// order interfaces by speed and filter out down and loopback
// take first of the remaining
var firstUpInterface = NetworkInterface.GetAllNetworkInterfaces()
.OrderByDescending(c => c.Speed)
.FirstOrDefault(c => c.NetworkInterfaceType != NetworkInterfaceType.Loopback && c.OperationalStatus == OperationalStatus.Up);
if (firstUpInterface != null) {
var props = firstUpInterface.GetIPProperties();
// get first IPV4 address assigned to this interface
var firstIpV4Address = props.UnicastAddresses
.Where(c => c.Address.AddressFamily == AddressFamily.InterNetwork)
.Select(c => c.Address)
.FirstOrDefault();
}
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