Draft code for network related util code

NetworkUtil.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.NetworkInformation;
using System.Net.Sockets;
using System.Text;
using System.Threading.Tasks;

namespace Helpers
{
    public class DeviceUtil
    {
        public static IPAddress GetLocalIpv4Address()
        {
            foreach (var ni in NetworkInterface.GetAllNetworkInterfaces())
            {
                var ipProp = ni.GetIPProperties();
                var addr = ipProp.GatewayAddresses.FirstOrDefault();
                if (ni.OperationalStatus != OperationalStatus.Up) continue;
                if (addr == null || addr.Address.ToString().Equals("0.0.0.0")) continue;
                if (ni.NetworkInterfaceType != NetworkInterfaceType.Ethernet &&
                    ni.NetworkInterfaceType != NetworkInterfaceType.Wireless80211) continue;
                foreach (var ip in ipProp.UnicastAddresses)
                {
                    if (ip.Address.AddressFamily == AddressFamily.InterNetwork)
                    {
                        return ip.Address;
                    }
                }
            }


            var hostName = Dns.GetHostName();
            return
                Dns.GetHostAddresses(hostName).First(item => item.AddressFamily == AddressFamily.InterNetwork && Dns.GetHostEntry(item).HostName.StartsWith(hostName));
        }
    }
}