static void Tracert(String remoteHost)
{
//начальная инициализация
Socket host = new Socket(AddressFamily.InterNetwork, SocketType.Raw, ProtocolType.Icmp);
IPHostEntry iphe = Dns.GetHostEntry(remoteHost);
IPEndPoint iep = new IPEndPoint(iphe.AddressList[0], 0);
EndPoint ep = (EndPoint)iep;
ICMP packet = new ICMP
{
//формирование пакета
Type = 0x08,
Code = 0x00,
Identifier = 1,
SeqNumber = 1,
Message = ToByteArr("Test")
};
packet.MessageSize = packet.Message.Length + MsgHeaderSize;
int packetsize = packet.MessageSize + HeaderSize;
UInt16 chcksum = packet.getChecksum();
packet.Checksum = chcksum;
host.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, 3000);
for (int i = 1; i < 50; i++)
{
if (SendRecieve(i, host, packet, ep, iep, packetsize))
{
break;
}
}
host.Close();
}
static void Main(string[] args)
{
byte[] data = new byte[1024];
int recv;
Socket host = new Socket(AddressFamily.InterNetwork, SocketType.Raw, ProtocolType.Icmp);
IPEndPoint iep = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 0);
EndPoint ep = (EndPoint)iep;
ICMP packet = new ICMP();
packet.Type = 0x08;
packet.Code = 0x00;
packet.Checksum = 0;
Buffer.BlockCopy(BitConverter.GetBytes((short)1), 0, packet.Message, 0, 2);
Buffer.BlockCopy(BitConverter.GetBytes((short)1), 0, packet.Message, 2, 2);
data = Encoding.ASCII.GetBytes("test packet");
Buffer.BlockCopy(data, 0, packet.Message, 4, data.Length);
packet.MessageSize = data.Length + 4;
int packetsize = packet.MessageSize + 4;
UInt16 chcksum = packet.getChecksum();
packet.Checksum = chcksum;
host.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, 3000);
host.SendTo(packet.getBytes(), packetsize, SocketFlags.None, iep);
try
{
data = new byte[1024];
recv = host.ReceiveFrom(data, ref ep);
//Console.WriteLine(Encoding.ASCII.GetString(data));
}
catch (SocketException)
{
Console.WriteLine("No response from remote host");
Console.ReadKey();
return;
}
ICMP response = new ICMP(data, recv);
Console.WriteLine("response from: {0}", ep.ToString());
Console.WriteLine(" Type {0}", response.Type);
Console.WriteLine(" Code: {0}", response.Code);
int Identifier = BitConverter.ToInt16(response.Message, 0);
int Sequence = BitConverter.ToInt16(response.Message, 2);
Console.WriteLine(" Identifier: {0}", Identifier);
Console.WriteLine(" Sequence: {0}", Sequence);
string stringData = Encoding.ASCII.GetString(response.Message, 4, response.MessageSize - 4);
Console.WriteLine(" data: {0}", stringData);
Console.ReadKey();
host.Close();
}
public bool TryConnect(string address)
{
byte[] data = new byte[1024];
int recv;
Socket host = new Socket(AddressFamily.InterNetwork, SocketType.Raw,
ProtocolType.Icmp);
try
{
IPHostEntry e = Dns.GetHostEntry(address);
if (e == null || e.AddressList.Length == 0 || e.AddressList[0].ToString() == null)
{
return(false);
}
else
{
address = e.AddressList[0].ToString();
if (address == "::1")
{
address = "127.0.0.1";
}
}
IPEndPoint iep = new IPEndPoint(IPAddress.Parse(address), 0);
EndPoint ep = (EndPoint)iep;
ICMP packet = new ICMP();
packet.Type = 0x08;
packet.Code = 0x00;
packet.Checksum = 0;
Buffer.BlockCopy(BitConverter.GetBytes((short)1), 0, packet.Message, 0, 2);
Buffer.BlockCopy(BitConverter.GetBytes((short)1), 0, packet.Message, 2, 2);
data = Encoding.ASCII.GetBytes("test packet");
Buffer.BlockCopy(data, 0, packet.Message, 4, data.Length);
packet.MessageSize = data.Length + 4;
int packetsize = packet.MessageSize + 4;
UInt16 chcksum = packet.getChecksum();
packet.Checksum = chcksum;
host.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, 3000);
host.SendTo(packet.getBytes(), packetsize, SocketFlags.None, iep);
try
{
data = new byte[1024];
recv = host.ReceiveFrom(data, ref ep);
}
catch (SocketException)
{
return(false);
}
}
finally
{
try { host.Close(); }
catch { }
}
return(true);
}
private void Ping()
{
byte[] data = new byte[1024];
int recv;
Socket host = new Socket(AddressFamily.InterNetwork, SocketType.Raw, ProtocolType.Icmp);
IPEndPoint iep = new IPEndPoint(IPAddress.Parse(roverIPAddress), 0); //ICMP doesn't use port numbers
EndPoint ep = (EndPoint)iep;
ICMP packet = new ICMP();
packet.Type = 0x08;
packet.Code = 0x00;
packet.Checksum = 0;
Buffer.BlockCopy(BitConverter.GetBytes((short)1), 0, packet.Message, 0, 2);
Buffer.BlockCopy(BitConverter.GetBytes((short)1), 0, packet.Message, 2, 2);
data = Encoding.ASCII.GetBytes("ping");
Buffer.BlockCopy(data, 0, packet.Message, 4, data.Length);
packet.MessageSize = data.Length + 4;
int packetsize = packet.MessageSize + 4;
UInt16 chcksum = packet.getChecksum();
packet.Checksum = chcksum;
host.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, 1000);
while (true)
{
DateTime sentAt = DateTime.Now;
DateTime recvdAt = sentAt;
host.SendTo(packet.getBytes(), packetsize, SocketFlags.None, iep);
try
{
data = new byte[1024];
recv = host.ReceiveFrom(data, ref ep);
recvdAt = DateTime.Now;
ICMP response = new ICMP(data, recv);
DateTime recvd = DateTime.Now;
ConnectedToRover = true;
PingRTT = (long)(recvdAt - sentAt).TotalMilliseconds;
}
catch (SocketException)
{
ConnectedToRover = false;
PingRTT = 0;
}
Thread.Sleep(500);
}
}
//Основная программа
static void MyTracert(String remoteHost)
{
//начальная инициализация
byte[] data = new byte[1024];
Socket host = new Socket(AddressFamily.InterNetwork, SocketType.Raw, ProtocolType.Icmp);
IPHostEntry iphe = Dns.Resolve(remoteHost);
IPEndPoint iep = new IPEndPoint(iphe.AddressList[0], 0);
EndPoint ep = (EndPoint)iep;
ICMP packet = new ICMP();
//формирование пакета
packet.Type = 0x08;
packet.Code = 0x00;
packet.Checksum = 0;
packet.Identifier = 1;
packet.SeqNumber = 1;
packet.Message = ToByteArr("test");
packet.MessageSize = packet.Message.Length + MsgHeaderSize;
int packetsize = packet.MessageSize + HeaderSize;
UInt16 chcksum = packet.getChecksum();
packet.Checksum = chcksum;
host.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, 3000);
//цикл переборки ttl и обработки ответов
for (int i = 1; i < 256; i++)
{
if (SendRecieve(i, host, packet, ep, iep, packetsize))
{
break;
}
}
host.Close();
}
public static void Main(string[] argv)
{
int trys = 3;
Console.Write("tracert ");
string address = Console.ReadLine();
byte[] data = new byte[1024];
int recv, timestart, timestop;
Socket host = new Socket(AddressFamily.InterNetwork, SocketType.Raw, ProtocolType.Icmp);
bool flagHostEntry = false;
while (!flagHostEntry)
{
try
{
IPHostEntry temp = Dns.GetHostEntry(address);
flagHostEntry = true;
}
catch (Exception)
{
Console.Write("\nВведен неверный адрес, попробуйте еще раз: ");
address = Console.ReadLine();
};
}
;
IPHostEntry iphe = Dns.GetHostEntry(address);
IPEndPoint iep = new IPEndPoint(iphe.AddressList[0], 0);
EndPoint ep = (EndPoint)iep;
ICMP packet = new ICMP();
packet.Type = 0x08;
packet.Code = 0x00;
packet.Checksum = 0;
Buffer.BlockCopy(BitConverter.GetBytes(1), 0, packet.Message, 0, 2);
Buffer.BlockCopy(BitConverter.GetBytes(1), 0, packet.Message, 2, 2);
data = Encoding.ASCII.GetBytes("test packet");
Buffer.BlockCopy(data, 0, packet.Message, 4, data.Length);
packet.MessageSize = data.Length + 4;
int packetsize = packet.MessageSize + 4;
UInt16 chcksum = packet.getChecksum();
packet.Checksum = chcksum;
host.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, 1000);
try
{
if (Dns.GetHostEntry(address).HostName == address)
{
Console.WriteLine("\nТрассировка маршрута к {0} [{1}]", address, Dns.GetHostEntry(address).AddressList[0].ToString());
}
else
{
Console.WriteLine("\nТрассировка маршрута к {0} [{1}]", Dns.GetHostEntry(address).HostName, address);
}
}
catch (Exception)
{
Console.WriteLine("\nТрассировка маршрута к {0}", address);
};
Console.WriteLine("с максимальным числом прыжков 30:\n");
int falsecount = 0;
bool flagExit = true;
for (int i = 1; i <= 30 && flagExit; i++)
{
Console.Write("{0,3} ", i);
for (int j = 0; j < trys; j++)
{
host.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.IpTimeToLive, i);
timestart = Environment.TickCount;
host.SendTo(packet.getBytes(), packetsize, SocketFlags.None, iep);
try
{
data = new byte[1024];
recv = host.ReceiveFrom(data, ref ep);
timestop = Environment.TickCount;
ICMP response = new ICMP(data, recv);
if (response.Type == 11)
{
if (timestop == timestart)
{
Console.Write(" 1 мс");
}
else
{
Console.Write("{0,5} мс", timestop - timestart);
}
}
if (response.Type == 0)
{
if (timestop == timestart)
{
Console.Write(" 1 мс");
}
else
{
Console.Write("{0,5} мс", timestop - timestart);
}
flagExit = false;
}
falsecount = 0;
}
catch (SocketException)
{
Console.Write(" * ");
falsecount++;
}
}
if (falsecount >= trys)
{
Console.WriteLine(" Превышен интервал ожидания для запроса.");
if (falsecount == trys * 3)
{
Console.WriteLine("\nНевозможно связаться с удаленным хостом.");
flagExit = false;
}
}
else
{
try
{
string strEndPoint = Regex.Replace(ep.ToString(), ":.*", "");
Console.Write(" {0} [{1}]", Dns.GetHostEntry(strEndPoint).HostName, strEndPoint);
}
catch (Exception)
{
Console.Write(" {0}", Regex.Replace(ep.ToString(), ":.*", ""));
};
Console.WriteLine();
}
}
host.Close();
Console.WriteLine("\nТрассировка завершина.\n");
Console.Read();
}
private void Ping()
{
byte[] data = new byte[1024];
int recv;
Socket host = new Socket(AddressFamily.InterNetwork, SocketType.Raw, ProtocolType.Icmp);
IPEndPoint iep = new IPEndPoint(IPAddress.Parse(roverIPAddress), 0); //ICMP doesn't use port numbers
EndPoint ep = (EndPoint)iep;
ICMP packet = new ICMP();
packet.Type = 0x08;
packet.Code = 0x00;
packet.Checksum = 0;
Buffer.BlockCopy(BitConverter.GetBytes((short)1), 0, packet.Message, 0, 2);
Buffer.BlockCopy(BitConverter.GetBytes((short)1), 0, packet.Message, 2, 2);
data = Encoding.ASCII.GetBytes("ping");
Buffer.BlockCopy(data, 0, packet.Message, 4, data.Length);
packet.MessageSize = data.Length + 4;
int packetsize = packet.MessageSize + 4;
UInt16 chcksum = packet.getChecksum();
packet.Checksum = chcksum;
host.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, 1000);
while (true)
{
DateTime sentAt = DateTime.Now;
DateTime recvdAt = sentAt;
host.SendTo(packet.getBytes(), packetsize, SocketFlags.None, iep);
try
{
data = new byte[1024];
recv = host.ReceiveFrom(data, ref ep);
recvdAt = DateTime.Now;
ICMP response = new ICMP(data, recv);
DateTime recvd = DateTime.Now;
ConnectedToRover = true;
PingRTT = (long)(recvdAt - sentAt).TotalMilliseconds;
}
catch (SocketException)
{
ConnectedToRover = false;
PingRTT = 0;
}
Thread.Sleep(500);
}
}
public static void Main(string[] argv)
{
byte[] data = new byte[1024];
int recv, timestart, timestop;
Socket host = new Socket(AddressFamily.InterNetwork, SocketType.Raw, ProtocolType.Icmp);
IPEndPoint iep = new IPEndPoint(IPAddress.Parse("8.8.8.8"), 0);
EndPoint ep = iep;
ICMP packet = new ICMP();
packet.Type = 0x08;
packet.Code = 0x00;
packet.Checksum = 0;
Buffer.BlockCopy(BitConverter.GetBytes(1), 0, packet.Message, 0, 2);
Buffer.BlockCopy(BitConverter.GetBytes(1), 0, packet.Message, 2, 2);
data = Encoding.ASCII.GetBytes("test packet");
Buffer.BlockCopy(data, 0, packet.Message, 4, data.Length);
packet.MessageSize = data.Length + 4;
int packetsize = packet.MessageSize + 4;
UInt16 chcksum = packet.getChecksum();
packet.Checksum = chcksum;
host.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, 3000);
int badcount = 0;
for (int i = 1; i < 50; i++)
{
host.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.IpTimeToLive, i);
timestart = Environment.TickCount;
host.SendTo(packet.getBytes(), packetsize, SocketFlags.None, iep);
try
{
data = new byte[1024];
recv = host.ReceiveFrom(data, ref ep);
timestop = Environment.TickCount;
ICMP response = new ICMP(data, recv);
if (response.Type == 11)
{
Console.WriteLine("hop {0}: response from {1}, {2}ms", i, ep.ToString(), timestop - timestart);
}
if (response.Type == 0)
{
Console.WriteLine("{0} reached in {1} hops, {2}ms.", ep.ToString(), i, timestop - timestart);
break;
}
badcount = 0;
}
catch (SocketException)
{
Console.WriteLine("hop {0}: No response from remote host", i);
badcount++;
if (badcount == 5)
{
Console.WriteLine("Unable to contact remote host");
break;
}
}
}
host.Close();
Console.ReadKey();
}
static void Main(string[] args)
{
string ip;
Console.Write("tracert ");;
ip = Console.ReadLine();
IPAddress adress;
if (IPAddress.TryParse(ip, out adress))
{
try
{
string domen = System.Net.Dns.GetHostEntry(ip).HostName;
Console.WriteLine($"\n Трассировка маршрута к {domen} [{ip}] \n максимальное число прыжков 30:");
}
catch
{
Console.WriteLine($"\n Трассировка маршрута к [{ip}] \n максимальное число прыжков 30:");
}
}
else
{
try
{
string domen = System.Net.Dns.GetHostEntry(ip).HostName;
if (domen == ip)
{
ip = System.Net.Dns.GetHostEntry(ip).AddressList[0].ToString();
}
Console.WriteLine($"\n Трассировка маршрута к {domen} [{ip}] \n максимальное число прыжков 30:\n");
}
catch
{
Console.WriteLine("Не удается разрешить системное имя узла");
Console.ReadKey();
Environment.Exit(0);
}
}
byte[] data = new byte[1024];
IPAddress adr = IPAddress.Parse(ip);
Socket host = new Socket(AddressFamily.InterNetwork, SocketType.Raw, ProtocolType.Icmp); //1. все адреса, используемые сокетом(протокол IPv4) 2. для передачи icmp пакетов 3. протокол icmp
IPHostEntry iphe = System.Net.Dns.GetHostEntry(adr); // контейнер для сведений об адресе веб-узлa
IPEndPoint iep = new IPEndPoint(adr, 0); // конечная точка ip-адрес и номер порта
EndPoint ep = (EndPoint)iep; //определяет сетевой адрес
ICMP packet = new ICMP(); //формируем ICMP пакет
packet.Type = 0x08; //тип для эхо-запроса?
packet.Code = 0x00;
packet.Checksum = 0;
int packetsize = packet.MessageSize + 8;//У кати +8 заголовка
UInt16 chcksum = packet.getChecksum();
packet.Checksum = chcksum;
host.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout /*промежуток времени, после которого истечет время тайм-аута*/, 3000);
int badcount = 0;
bool stop = false;
for (int i = 1; i < 30; i++)
{
Console.Write(i);
host.SetSocketOption(SocketOptionLevel.IP /*ip сокеты*/, SocketOptionName.IpTimeToLive /*поле срока жизни заголовка*/, i);
for (int j = 1; j < 4; j++)
{
DateTime timestart = DateTime.Now;
try
{
host.SendTo(packet.getBytes(), packetsize, SocketFlags.None, iep);
data = new byte[1024];
int recv = host.ReceiveFrom(data, ref ep);// получает дейтаграмму и конечную точку источника
TimeSpan timestop = DateTime.Now - timestart;
ICMP response = new ICMP(data, recv);
if (response.Type == 11)
{
Console.Write("{0,10}", (timestop.Milliseconds.ToString()) + "мс");
}
if (response.Type == 0)
{
Console.Write("{0,10}", (timestop.Milliseconds.ToString()) + "мс");
stop = true;
}
badcount = 0;
}
catch (SocketException)
{
Console.Write("{0,10}", "*");
badcount++;
}
}
if (badcount == 3 && !stop)
{
Console.WriteLine(" Превышен интервал ожидания запроса");
badcount = 0;
}
else
{
try
{
string domen = System.Net.Dns.GetHostEntry(IPAddress.Parse(ep.ToString().Split(':')[0])).HostName;
Console.WriteLine(" " + domen + " [" + ep.ToString().Split(':')[0] + "]");
}
catch
{
Console.WriteLine(" " + ep.ToString().Split(':')[0]);
}
}
if (stop)
{
Console.WriteLine("\nТрассировка завершена");
Console.ReadKey();
Environment.Exit(0);
}
}
host.Close();
Console.ReadKey();
}