C# helper function to ping a network host.

using System;
using System.Net;
using System.Net.NetworkInformation;
using System.Threading;
using System.Collections.Generic;

namespace MyNamespace
{
    public static class PingHelper
    {
        public static PingResult PingHost(string host, int timeout = 1000,
            int pingCount = 4, int waitTime = 100)
        {
            PingResult pingResult = new PingResult();
            IPAddress address = GetIpFromHost(host);
            byte[] buffer = new byte[32];
            PingOptions pingOptions = new PingOptions(128, true);

            using (Ping ping = new Ping())
            {
                for (int i = 0; i < pingCount; i++)
                {
                    try
                    {
                        PingReply pingReply = ping.Send(address, timeout, buffer, pingOptions);

                        if (pingReply != null)
                        {
                            pingResult.PingReplyList.Add(pingReply);
                        }
                    }
                    catch (Exception ex)
                    {
                        Debug.WriteLine(ex);
                    }

                    if (waitTime > 0 && i + 1 < pingCount)
                    {
                        Thread.Sleep(waitTime);
                    }
                }
            }

            return pingResult;
        }

        private static IPAddress GetIpFromHost(string host)
        {
            IPAddress address;

            if (!IPAddress.TryParse(host, out address))
            {
                try
                {
                    address = Dns.GetHostEntry(host).AddressList[0];
                }
                catch (Exception ex)
                {
                    Debug.WriteLine(ex);
                }
            }

            return address;
        }
    }

    public class PingResult
    {
        public List<PingReply> PingReplyList { get; private set; }

        public int Min
        {
            get
            {
                return (int)PingReplyList.Where(x => x.Status == IPStatus.Success).Min(x => x.RoundtripTime);
            }
        }

        public int Max
        {
            get
            {
                return (int)PingReplyList.Where(x => x.Status == IPStatus.Success).Max(x => x.RoundtripTime);
            }
        }

        public int Average
        {
            get
            {
                return (int)PingReplyList.Where(x => x.Status == IPStatus.Success).Average(x => x.RoundtripTime);
            }
        }

        public PingResult()
        {
            PingReplyList = new List<PingReply>();
        }

        public override string ToString()
        {
            StringBuilder sb = new StringBuilder();

            foreach (PingReply pingReply in PingReplyList)
            {
                if (pingReply != null)
                {
                    switch (pingReply.Status)
                    {
                        case IPStatus.Success:
                            sb.AppendLine(string.Format("Reply from {0}: bytes={1} time={2}ms TTL={3}", pingReply.Address, pingReply.Buffer.Length, pingReply.RoundtripTime, pingReply.Options.Ttl));
                            break;
                        case IPStatus.TimedOut:
                            sb.AppendLine("Request timed out.");
                            break;
                        default:
                            sb.AppendLine(string.Format("Ping failed: {0}", pingReply.Status.ToString()));
                            break;
                    }
                }
            }

            if (PingReplyList.Any(x => x.Status == IPStatus.Success))
            {
                sb.AppendLine(string.Format("Minimum = {0}ms, Maximum = {1}ms, Average = {2}ms", Min, Max, Average));
            }

            return sb.ToString().Trim();
        }
    }
}