C#-如何ping IP

dll：// C:Program Files (x86)Reference AssembliesMicrosoftFramework.NETFrameworkv4.0System.dll

方法 1：

        /// <summary>
        /// 是否能 Ping 通指定的主机
        /// </summary>
        /// <param name="ip">ip 地址或主机名或域名</param>
        /// <returns>true 通，false 不通</returns>
        private bool Ping(string ip)
        {
            bool w_blnReturn = false;
            try
            {

                System.Net.NetworkInformation.Ping p = new System.Net.NetworkInformation.Ping();
                System.Net.NetworkInformation.PingOptions options = new System.Net.NetworkInformation.PingOptions();
                options.DontFragment = true;
                string data = "Test Data!";
                byte[] buffer = Encoding.ASCII.GetBytes(data);
                int timeout = 1000; // Timeout 时间，单位：毫秒
                System.Net.NetworkInformation.PingReply reply = p.Send(ip, timeout, buffer, options);
                if (reply.Status == System.Net.NetworkInformation.IPStatus.Success)
                    w_blnReturn = true;
                else
                    w_blnReturn = false;

            }
            catch (Exception ex)
            {
                //异常日志
                msg = String.Format("Ping执行异常，详细：{0}", ex.StackTrace.ToString());
                log.Error(msg);
            }
            return w_blnReturn;
        }

　　

方法2：   PingReply reply = pinSender.Send(str_ip, timeout, buffer, options);

         /// <summary>
        /// Ping固定IP 
        /// </summary>
        /// <param name="str_ip">IP地址</param>
        /// <returns>成功返回1，失败返回0</returns>
        public int CheckDeviceStatus(string str_ip)
        {
            Ping pinSender = new Ping();
            PingOptions options = new PingOptions();
            string data = "";
            byte[] buffer = Encoding.ASCII.GetBytes(data);
            options.DontFragment = true;
            int timeout = 1200;
            PingReply reply = pinSender.Send(str_ip, timeout, buffer, options);
            if (reply.Status != IPStatus.Success)
            {
                return 0;
            }

            return 1;
        }