使用GateWay IP获取网络上的所有设备IP

我必须获取路由器/门路IP，然后每次增加最后一个八位字节以扫描所有设备。我使用函数NetworkGateway()获取GateWay IP。

        //gets the GateWay IP
        string gate_ip= NetworkGateway();
        //mechanism to parse ,get the last octet and increment it everytime goes here so that    ping_var = "192.168.0" + "." + i; have a fixed "192.168.0"
            for (int i = 2; i <= 255; i++)
            {
                 //changes i for every unique device
                string ping_var = "192.168.0" + "." + i;
            }


     IPAddress address = IPAddress.Parse(ipAddress);

  // gives 192.168.0.1 when passed "192.168.0.1 "
  Console.WriteLine("Parsing your input string: " + "'"" + ipAddress + "'"" + " produces this address (shown in its standard notation): "+ address.ToString());

//Returns  the Bytes of IP
     Byte[] bytes = address.GetAddressBytes();
    for (int i = 0; i < bytes.Length; i++) 
       {
         Console.Write(bytes[i]);
       }  

为此，我首先使用了IPAddress.Parse(ipAddress)，然后使用了GetAddressBytes()但它只是返回了不能用于递增的xxxxxxxx。

SO这里建议的AddOne方法也没有返回它。

任何好主意。

    string gate_ip= NetworkGateway();
        string[] array = gate_ip.Split('.');
            for (int i = 2; i <= 255; i++)
            {
                string ping_var = array[0] +"."+array[1]+"."+array[2]+ "." + i;
                // do scanning here
            }