Looking Glass Utilities - Router to Host Traceroute
Allows a user to view all router hops encountered in
the path between a Global Crossing node and a specified
URL address
Trying trace from node 'Cleveland, OH, US' to '209.131.36.158'
1 fe0-1-0-202-100M.ar1.cle1.gblx.net (64.214.8.97) 0.645 ms 0.471 ms
2 TE9-1-10G.ar2.DCA3.gblx.net (67.17.108.17) 17.267 ms 17.479 ms
3 yahoo-6.ar2.DCA3.gblx.net (64.215.195.110) 17.421 ms 17.331 ms
4 so-0-0-0.pat2.pao.yahoo.com (216.115.101.130) 68.795 ms 68.169 ms
5 g-0-0-0-p141.msr1.sp1.yahoo.com (216.115.107.51) 68.811 ms g-1-0-0-p151.msr2.sp1.yahoo.com ms
6 te-8-1.bas-a1.sp1.yahoo.com (209.131.32.17) 68.831 ms te-9-1.bas-a1.sp1.yahoo.com ms
7 * (*) * ms * ms
8 * (*) * ms * ms
9 * (*) * ms * ms
10 * (*) * ms * ms
11 * (*) * ms * ms
12 * (*) * ms * ms
13 * (*) * ms * ms
14 * (*) * ms * ms
15 * (*) * ms * ms
16 * (*) * ms * ms
17 * (*) * ms * ms
18 * (*) * ms * ms
19 * (*) * ms * ms
20 * (*) * ms * ms
21 * (*) * ms * ms
22 * (*) * ms * ms
23 * (*) * ms * ms
24 * (*) * ms * ms
25 * (*) * ms * ms
26 * (*) * ms * ms
27 * (*) * ms * ms
28 * (*) * ms * ms
29 * (*) * ms * ms
30 * (*) * ms * ms
Command completed
If a returned message contains or is completely composed of ***, this is
probably the result of a filtering device (i.e. firewall) encountered along
the path being traced. The same explanation would apply for no output in
the case of a ping query.