Stanford University seal SLAC logo, click here to learn more about SLAC

tracepath from 192.236.39.209 (perfsonar4.usd.edu) to 18.208.126.232 (ec2-18-208-126-232.compute-1.amazonaws.com) for 18.208.126.232

CGI script maintainer: Les Cottrell, SLAC. Script version 7.7, 8/9/2018, Les Cottrell.
Download perl source code.
To perform a traceroute/ping/tracepath function from perfsonar4.usd.edu to the target, enter the desired target host.domain (e.g. www.yahoo.com) or Internet address (e.g. 137.138.28.228) in the box below. Note the fucntion is performed for the target's resolved Internet address.
Enter target name or address: then push 'Enter' key.
Lookup: domain name | Locating a Host | visual traceroute | Find AS of a host | contacting someone
Related web sites
Traceroute servers,
Monitoring tutorial,
Internet monitoring
What is my IP address?
Please note that traceroutes can appear similar to port scans. If you see a suspected port scan alert, for example from your firewall, with a series of ports in the range 33434 - 33465, coming from perfsonar4.usd.edu it is probably a reverse traceroute from our web based reverse traceroute server. Please do NOT report this to us, it will almost certainly be a waste of both of our times. For more on this see
Traceroute security issues.
Executing exec(/bin/tracepath  18.208.126.232)
 1?: [LOCALHOST]                                         pmtu 1500
 1:  206.176.0.38                                          1.458ms 
 1:  206.176.0.38                                          1.261ms 
 2:  206.71.32.5                                           2.347ms 
 3:  206.71.32.162                                        12.142ms asymm  4 
 4:  fourhundredge-0-0-0-0.4079.core1.chic.net.internet2.edu  21.552ms asymm  9 
 5:  fourhundredge-0-0-0-0.4079.core1.eqch.net.internet2.edu  21.982ms asymm  8 
 6:  fourhundredge-0-0-0-49.4079.agg2.eqch.net.internet2.edu  22.872ms asymm  7 
 7:  no reply
 8:  52.93.249.131                                        20.903ms asymm 11 
 9:  52.95.62.77                                          23.497ms 
10:  no reply
11:  no reply
12:  no reply
13:  no reply
14:  no reply
15:  no reply
16:  52.93.29.72                                          42.762ms asymm 26 
17:  no reply
18:  no reply
19:  no reply
20:  no reply
21:  no reply
22:  no reply
23:  no reply
24:  no reply
25:  no reply
26:  no reply
27:  no reply
28:  no reply
29:  no reply
30:  no reply
     Too many hops: pmtu 1500
     Resume: pmtu 1500