====== UNC ====== traceroute can fail when crossing firewalls that drop UDP packets: tcptraceroute is a TCP implementation of traceroute to get around this shortcoming. <code> $ tcptraceroute unc.edu Selected device eth0, address 192.168.1.114, port 37429 for outgoing packets Tracing the path to unc.edu (152.19.240.120) on TCP port 80 (www), 30 hops max 1 192.168.1.1 0.669 ms 0.521 ms 0.510 ms 2 resnet-g-292.ucsc.edu (169.233.39.254) 1.362 ms 1.344 ms 1.246 ms 3 isp-g-ge2-5.ucsc.edu (128.114.0.186) 1.518 ms 1.638 ms 1.560 ms 4 comm-g-ge3-2.ucsc.edu (128.114.1.66) 1.621 ms 1.750 ms 1.675 ms 5 hpr-g-ge2-2.ucsc.edu (128.114.0.66) 1.719 ms 1.735 ms 1.731 ms 6 hpr-svl-hpr2--ucsc.cenic.net (137.164.26.93) 2.939 ms 3.193 ms 2.630 ms 7 lax-hpr2--svl-hpr2-10g.cenic.net (137.164.25.37) 10.591 ms 11.270 ms 11.047 ms 8 hpr-nlr-pn--lax-hpr2.cenic.net (137.164.26.26) 10.719 ms 11.087 ms 11.093 ms 9 216.24.186.72 75.538 ms 76.291 ms 76.690 ms 10 216.24.186.75 75.470 ms 75.437 ms 75.633 ms 11 216.24.186.79 76.255 ms 77.231 ms 75.725 ms 12 216.24.186.54 75.860 ms 75.542 ms 75.332 ms 13 216.24.186.53 75.339 ms 75.385 ms 75.391 ms 14 dep7600-gw2-to-nlr-atl.ncren.net (198.86.17.85) 76.434 ms 76.915 ms 76.963 ms 15 rlgh7600-gw-to-dep7600-gw2.ncren.net (128.109.75.9) 76.402 ms 76.475 ms 76.518 ms 16 ciscokid-to-rlgh7600-gw.ncren.net (128.109.75.6) 77.969 ms 77.813 ms 78.089 ms 17 irl-vlan1500-manning-loco.net.unc.edu (152.2.255.220) 78.486 ms 77.446 ms 77.346 ms 18 www.unc.edu (152.19.240.120) [open] 77.441 ms 77.559 ms 78.651 ms </code>
