Example

using System;
using System.Net;

public class Example
{
    public static void Main(string[] args)
    {
        // Create an IPv4 address
        IPAddress ipv4Address = IPAddress.Parse("192.168.1.1");
        Console.WriteLine($"IPv4 Address: {ipv4Address}");
        Console.WriteLine($"Address Family: {ipv4Address.AddressFamily}");

        // Create an IPv6 address
        IPAddress ipv6Address = IPAddress.Parse("2001:0db8:85a3:0000:0000:8a2e:0370:7334");
        Console.WriteLine($"IPv6 Address: {ipv6Address}");
        Console.WriteLine($"Address Family: {ipv6Address.AddressFamily}");

        // Check if an address is loopback
        Console.WriteLine($"Is 127.0.0.1 loopback? {IPAddress.IsLoopback(IPAddress.Parse("127.0.0.1"))}");
    }
}