Network Looking Glass

Check routes and latency to other points on the Internet from our networks.

Test File

The following files are on a 1000 Mbit/sec link and contain randomized binary data (to prevent compression) which should reasonably test throughput from our network to any remote destination.

• Chicago: testfile.chi.steadfast.net
  • 100 MB of random data
  • 1 GB of random data
• New York: testfile.nyc.steadfast.net
  • 100 MB of random data
  • 1 GB of random data

Test IPs

The following IPs are on our primary network and should be used for remote ping/traceroute tests. Note: Just using steadfast.net will not work. Our web site and customer support systems are hosted on a different ASN to provide redundant access in the event of a network outage. Systems located on the secondary ASN are not intended to match the performance our primary network provides.

• Chicago: lookingglass.chi.steadfast.net
  • IPv4 - 208.100.4.54
  • IPv6 - 2607:f128:1:3::d
• New York: lookingglass.nyc.steadfast.net
  • IPv4 - 69.162.170.5
  • IPv6 - 2607:f128:400:1::d

Looking Glass (Ping/Traceroute)

Remote Host:

City: >Chicago >New York Network: >IPv4 (Normal) >IPv6

Error: Invalid characters in remote host

"; } else if ($host != "") { if (array_key_exists('network', $_POST) && $_POST['network'] == 'ipv6') { $type = "IPv6"; } else { $type = "IPv4"; } if (array_key_exists('city', $_POST) && $_POST['city'] == 'New York') { $loc = "nyc"; } else { $loc = "chi"; } if (array_key_exists('cmd', $_POST)) { if ($_POST['cmd'] == "traceroute") { print "

Tracing route to $host via $type from $city...

\n

\n";
      $tool = "tr";
    } else if ($_POST['cmd'] == "ping") {
      print "
Pinging $host via $type from $city...
\n
\n";
      $tool = "pn";
    } else {
      print "
Error: Unsupported operation requested
";
      $tool = "";
    }

    if ($tool != "") {
      flush();

      $handle = fopen($cgi[$loc] . "?tool=$tool&type=$type&host=$host", 'r');
      $line = "";
      if (!$handle) {
        print "Internal Server Error.";
      }
      while ($handle) {
	$char = fread($handle, 1);
	if($char == "\n" || $char == "\r") {
	  if ($line == "__DONE__") {
            if ($tool == "tr") {
              print "Trace complete.";
            }
	    break;
	  }          
	  print $line . "\n";
	  flush();
	  $line = "";
	} else {
	  $line .= $char;
	}
      }
      fclose($handle);
      print "
\n";
    }
  }
}
?>