C# TraceRoute实现
public static void GetTraceRoute(string hostname)
{
// following are similar to the defaults in the "traceroute" unix command.
const int timeout = 5000;
const int maxTTL = 64;
const int bufferSize = 32;
byte[] buffer = new byte[bufferSize];
new Random().NextBytes(buffer);
using (var pinger = new Ping())
{
for (int ttl = 1; ttl <= maxTTL; ttl++)
{
PingOptions options = new PingOptions(ttl, true);
PingReply reply = pinger.Send(hostname, timeout, buffer, options);
// we've found a route at this ttl
if (reply.Status == IPStatus.Success || reply.Status == IPStatus.TtlExpired)
{
Console.WriteLine(reply.Address);
}
// if we reach a status other than expired or timed out, we're done searching or there has been an error
if (reply.Status != IPStatus.TtlExpired && reply.Status != IPStatus.TimedOut)
break;
}
}
}