//------------------------------------------------------------------------------------------------------ [columbia4@planetlab1 columbia4]$ uname -a Linux planetlab1.ashburn.equinix.planet-lab.org 2.4.19-6_planetlab #2 Mon Aug 11 22:25:39 UTC 2003 i686 unknown [columbia4@planetlab1 columbia4]$ /sbin/route Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 65.77.223.80 * 255.255.255.252 U 0 0 0 eth0 127.0.0.0 * 255.0.0.0 U 0 0 0 lo default 65.77.223.81 0.0.0.0 UG 0 0 0 eth0 [columbia4@planetlab1 columbia4]$ [columbia4@planetlab1 columbia4]$ ping -Q 0x08 128.59.19.191 PING 128.59.19.191 (128.59.19.191) from 65.77.223.82 : 56(84) bytes of data. 64 bytes from 128.59.19.191: icmp_seq=1 ttl=245 time=7.87 ms 64 bytes from 128.59.19.191: icmp_seq=2 ttl=245 time=6.68 ms --- 128.59.19.191 ping statistics --- 2 packets transmitted, 2 received, 0% loss, time 1011ms rtt min/avg/max/mdev = 6.681/7.279/7.877/0.598 ms [columbia4@planetlab1 columbia4]$ //---------------------------------------------------------------------------------------------------- : bart.cs.columbia.edu ;ping -P 0x02 65.77.223.82 65.77.223.82 is alive : bart.cs.columbia.edu ; //----------------------------------------------------------------------------------------------------- : bart.cs.columbia.edu ;tcpdump -n -v -v tcpdump: listening on hme0 23:00:16.312494 65.77.223.82 > 128.59.19.191: icmp: echo request (DF) (ttl 54, id 0, len 84) 23:00:16.312528 128.59.19.191 > 65.77.223.82: icmp: echo reply (DF) (ttl 255, id 58967, len 84) 23:00:16.769492 128.59.19.191 > 65.77.223.82: icmp: echo request (DF) [tos 0x2,ECT(0)] (ttl 255, id 58968, len 84) 23:00:16.776197 65.77.223.82 > 128.59.19.191: icmp: echo reply (ttl 54, id 41777, len 84) //---------------------------------------------------------------------------------------------------- planetlab1.comet.columbia.edu(1)~>/usr/sbin/traceroute 65.77.223.82 traceroute to 65.77.223.82 (65.77.223.82), 30 hops max, 38 byte packets 1 mudd-edge-1.net.columbia.edu (128.59.64.1) 0.468 ms 0.337 ms 0.326 ms 2 nyser-gw.net.columbia.edu (128.59.1.4) 0.759 ms 0.362 ms 0.928 ms 3 67.99.58.193 (67.99.58.193) 1.442 ms 1.114 ms 1.070 ms 4 P2-2.c0.nwyk.broadwing.net (216.140.10.13) 1.164 ms 3.178 ms 2.616 ms 5 p7-0.c0.wash.broadwing.net (216.140.8.101) 6.029 ms 5.889 ms 5.166 ms 6 p0-2-0.a1.wash.broadwing.net (216.140.8.90) 6.261 ms 5.942 ms 5.959 ms 7 216.140.8.78 (216.140.8.78) 6.506 ms 6.665 ms 6.628 ms 8 washdc5lcx1-gige15-0-10.wcg.net (64.200.95.129) 8.050 ms 9.188 ms 9.390 m s 9 washdc5lcx1-oc48.wcg.net (64.200.95.146) 11.362 ms 8.025 ms 7.155 ms 10 washdc5lce1-equinix-gige.wcg.net (64.200.88.2) 7.275 ms 8.613 ms 7.304 ms 11 * 65.77.223.82 (65.77.223.82) 9.195 ms 7.702 ms planetlab1.comet.columbia.edu(2)~>