[ACCEPTED]-Is there native .NET type for CIDR subnets?-cidr
Accepted answer
You can use the code from GitHub to do just 1 that:
https://github.com/lduchosal/ipnetwork
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);
Output
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
For ASP.NET Core there is now IPNetwork class. Example 1 usage below:
var addr = IPAddress.Parse("192.168.0.0");
var mask = 16;
var test = new IPNetwork(addr, mask).Contains(context.Connection.RemoteIpAddress);
No there is such native type in .NET, you 1 will need to develop one your self.
Source:
stackoverflow.com
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