Nei*_*ski 15 .net c# ip-address subnet cidr
编写一个类来存储/验证类似的东西很简单192.168.0.0/16,但是我很好奇.NET中是否存在本机类型?我想它会像以下一样工作IPAddress:
CIDR subnet = CIDR.Parse("192.168.0.0/16");
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基本上,它只需要确保您使用IPv4或IPv6地址,然后确定您指定的位数对该类型有效.
Koe*_*ers 25
您可以使用CodePlex中的代码执行此操作:
http://ipnetwork.codeplex.com/
IPNetwork ipnetwork = IPNetwork.Parse("192.168.168.100/24");
Console.WriteLine("Network : {0}", ipnetwork.Network);
Console.WriteLine("Netmask : {0}", ipnetwork.Netmask);
Console.WriteLine("Broadcast : {0}", ipnetwork.Broadcast);
Console.WriteLine("FirstUsable : {0}", ipnetwork.FirstUsable);
Console.WriteLine("LastUsable : {0}", ipnetwork.LastUsable);
Console.WriteLine("Usable : {0}", ipnetwork.Usable);
Console.WriteLine("Cidr : {0}", ipnetwork.Cidr);
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产量
Network : 192.168.168.0
Netmask : 255.255.255.0
Broadcast : 192.168.168.255
FirstUsable : 192.168.168.1
LastUsable : 192.168.168.254
Usable : 254
Cidr : 24
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Mar*_*k G 12
对于 ASP.NET Core,现在有IPNetwork类。用法示例如下:
var addr = IPAddress.Parse("192.168.0.0");
var mask = 16;
var test = new IPNetwork(addr, mask).Contains(context.Connection.RemoteIpAddress);
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