Csharp/C Sharp/Network/IP Address

Any IPAddress

 
using System;
using System.Net;
class AddressSample {
    public static void Main() {
        IPAddress test4 = IPAddress.Any;
        Console.WriteLine("The ANY address is: {0}",test4.ToString());
    }
}

Broadcast IPAddress

 
using System;
using System.Net;
class AddressSample {
    public static void Main() {
        IPAddress test3 = IPAddress.Broadcast;
        Console.WriteLine("Broadcast address: {0}",test3.ToString());
    }
}

Get Host By Name, Get Host Name

 

using System;
using System.Net;
class AddressSample {
    public static void Main() {
        IPHostEntry ihe =  Dns.GetHostByName(Dns.GetHostName());
        IPAddress myself = ihe.AddressList[0];
        Console.WriteLine("The NONE address is: {0}",myself);
    }
}

Get Host Entry

 
using System;
using System.Net;
class MainClass {
    public static void Main(string[] args) {
        foreach (string comp in args) {
            try {
                IPAddress[] addresses = Dns.GetHostEntry(comp).AddressList;
                foreach (IPAddress address in addresses) {
                    Console.WriteLine("{0} = {1} ({2})",
                        comp, address, address.AddressFamily);
                }
            } catch (Exception ex) {
                Console.WriteLine("{0} = Error ({1})", comp, ex.Message);
            }
        }
    }
}

IPAddress AddressFamily

 
using System;
using System.Net;
class MainClass {
    public static void Main(string[] args) {
        foreach (string comp in args) {
            try {
                IPAddress[] addresses = Dns.GetHostEntry(comp).AddressList;
                foreach (IPAddress address in addresses) {
                    Console.WriteLine("{0} = {1} ({2})",
                        comp, address, address.AddressFamily);
                }
            } catch (Exception ex) {
                Console.WriteLine("{0} = Error ({1})", comp, ex.Message);
            }
        }
    }
}

IP Address parse, lookup

using System;
using System.Net;

public class AddressSample
{
    public static void Main()
    {
        IPAddress test1 = IPAddress.Parse("192.168.1.1");
        IPAddress test2 = IPAddress.Loopback;
        IPAddress test3 = IPAddress.Broadcast;
        IPAddress test4 = IPAddress.Any;
        IPAddress test5 = IPAddress.None;
        IPHostEntry ihe = Dns.GetHostByName(Dns.GetHostName());
        IPAddress myself = ihe.AddressList[0];
        if (IPAddress.IsLoopback(test2))
            Console.WriteLine("The Loopback address is: {0}", test2.ToString());
        else
            Console.WriteLine("Error obtaining the loopback address");
        Console.WriteLine("The Local IP address is: {0}\n", myself.ToString());
        if (myself == test2)
            Console.WriteLine("The loopback address is the same as local address.\n");
        else
            Console.WriteLine("The loopback address is not the local address.\n");
        Console.WriteLine("The test address is: {0}", test1.ToString());
        Console.WriteLine("Broadcast address: {0}", test3.ToString());
        Console.WriteLine("The ANY address is: {0}", test4.ToString());
        Console.WriteLine("The NONE address is: {0}", test5.ToString());
    }
}

IPEndPoint sample

using System;
using System.Net;

public class IPEndPointSample
{
    public static void Main()
    {
        IPAddress test1 = IPAddress.Parse("192.168.1.1");
        IPEndPoint ie = new IPEndPoint(test1, 8000);
        Console.WriteLine("The IPEndPoint is: {0}", ie.ToString());
        Console.WriteLine("The AddressFamily is: {0}", ie.AddressFamily);
        Console.WriteLine("The address is: {0}, and the port is: {1}\n",
                ie.Address, ie.Port);
        Console.WriteLine("The min port number is: {0}", IPEndPoint.MinPort);
        Console.WriteLine("The max port number is: {0}\n", IPEndPoint.MaxPort);
        ie.Port = 80;
        Console.WriteLine("The changed IPEndPoint value is: {0}", ie.ToString());
        SocketAddress sa = ie.Serialize();
        Console.WriteLine("The SocketAddress is: {0}", sa.ToString());
    }
}

IsLoopback IPAddress

 
using System;
using System.Net;
class AddressSample {
    public static void Main() {
        IPAddress test2 = IPAddress.Loopback;
        if (IPAddress.IsLoopback(test2))
            Console.WriteLine("The Loopback address is: {0}",
                    test2.ToString());
        else
            Console.WriteLine("Error obtaining the loopback address");
    }
}

Loopback IPAddress

 
using System;
using System.Net;
class AddressSample {
    public static void Main() {
        IPAddress test2 = IPAddress.Loopback;
        Console.WriteLine("Broadcast address: {0}",test2.ToString());
    }
}

None IPAddress

 
using System;
using System.Net;
class AddressSample {
    public static void Main() {
        IPAddress test5 = IPAddress.None;
        Console.WriteLine("The NONE address is: {0}",test5.ToString());
    }
}

Parse an IPAddress

 
using System;
using System.Net;
class AddressSample {
    public static void Main() {
        IPAddress test1 = IPAddress.Parse("192.168.1.1");
        Console.WriteLine("The test address is: {0}",  test1.ToString());
    }
}