/// <summary>
/// Retrieves the IPInfo for the machine on the local network with the specified MAC Address.
/// </summary>
/// <param name="macAddress">The MAC Address of the IPInfo to retrieve.</param>
/// <returns></returns>
public static ARP GetIPInfo(string macAddress)
{
ARP ipinfo = (from ip in GetIPInfo()
where ip.MacAddress.ToLowerInvariant() == macAddress.ToLowerInvariant()
select ip).FirstOrDefault();
return(ipinfo);
}
public static DiscoveryResult DiscoverDevice(int port)
{
IEnumerable <string> ips = getInterfaceAddresses();
var ret = new DiscoveryResult();
_localEndPoint = new IPEndPoint(IPAddress.Any, 0);
_client = new UdpClient(port);
var p = new ISCPPacket("!xECNQSTN");
byte[] sendbuf = p.GetBytes();
foreach (string networkaddress in ips)
{
_client.Send(sendbuf, sendbuf.Length, IPAddress.Parse(networkaddress).ToString(), port);
_client.Send(sendbuf, sendbuf.Length, IPAddress.Parse(networkaddress).ToString(), port);
_client.Send(sendbuf, sendbuf.Length, IPAddress.Parse(networkaddress).ToString(), port);
}
while (_client.Available > 0)
{
byte[] recv = _client.Receive(ref _localEndPoint);
Thread.Sleep(100);
var sb = new StringBuilder();
foreach (byte t in recv)
{
sb.Append(char.ConvertFromUtf32(Convert.ToInt32(string.Format("{0:x2}", t), 16)));
}
string stringData = sb.ToString();
if (stringData.Contains("!1ECN"))
{
int idx = stringData.IndexOf("!1ECN") + 5;
string[] parts = stringData.Substring(idx).Split('/');
string mac = parts[3].Substring(0, 12);
string ip = ARP.GetIPInfo(mac).IPAddress;
ret.IP = ip;
ret.Port = Convert.ToInt32(parts[1]);
ret.Region = stringData.Substring(idx + 14, 2);
ret.MAC = mac;
ret.Model = stringData.Substring(idx, 7);
}
}
_client.Close();
return(ret);
}
