====== Broad Institute ====== traceroute can fail when crossing firewalls that drop UDP packets: tcptraceroute is a TCP implementation of traceroute to get around this shortcoming. <code> $ tcptraceroute broadinstitute.org Selected device eth0, address 192.168.1.114, port 41937 for outgoing packets Tracing the path to broadinstitute.org (69.173.64.101) on TCP port 80 (www), 30 hops max 1 192.168.1.1 1.109 ms 0.559 ms 0.520 ms 2 resnet-g-292.ucsc.edu (169.233.39.254) 1.489 ms 1.339 ms 1.105 ms 3 isp-g-ge2-5.ucsc.edu (128.114.0.186) 1.776 ms 1.665 ms 1.498 ms 4 isb-g-g2-5.ucsc.edu (128.114.0.42) 1.662 ms 2.438 ms 1.587 ms 5 hpr-g-ge2-1.ucsc.edu (128.114.0.46) 2.037 ms 1.624 ms 1.810 ms 6 hpr-svl-hpr2--ucsc.cenic.net (137.164.26.93) 3.010 ms 7.921 ms 2.950 ms 7 lax-hpr2--svl-hpr2-10g.cenic.net (137.164.25.37) 10.893 ms 10.876 ms 10.905 ms 8 hpr-i2-newnet--lax-hpr.cenic.net (137.164.26.134) 11.400 ms 11.129 ms 10.898 ms 9 xe-0-1-0.0.rtr.hous.net.internet2.edu (64.57.28.97) 42.812 ms 43.331 ms 43.464 ms 10 xe-1-0-0.0.rtr.kans.net.internet2.edu (64.57.28.56) 56.833 ms 210.467 ms 56.590 ms 11 ge-1-2-0.0.rtr.chic.net.internet2.edu (64.57.28.37) 557.064 ms 578.801 ms 591.742 ms 12 nox1sumgw1-vl-112-nox-i2.nox.org (192.5.89.17) 168.539 ms 98.672 ms 211.325 ms 13 nox1sumgw1-peer-nox-mit-b-207-210-143-158.nox.org (207.210.143.158) 89.771 ms 89.807 ms 89.756 ms 14 * * * 15 www.broadinstitute.org (69.173.64.101) [open] 89.957 ms [closed] 89.719 ms 92.339 ms </code>
