: vienna.clic.cs.columbia.edu ;ssh columbia4@65.77.223.82 Warning: Permanently added '65.77.223.82' (RSA) to the list of known hosts. Enter passphrase for key '/home/lz2110/.ssh/identity': [columbia4@planetlab1 columbia4]$ uname Linux [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]$ /usr/sbin/traceroute 128.59.19.191 traceroute to 128.59.19.191 (128.59.19.191), 30 hops max, 38 byte packets 1 65.77.223.81 (65.77.223.81) 0.789 ms 1.598 ms 1.197 ms 2 washdc5lce1-gige15-1-16.ecg.net (64.200.88.1) 0.733 ms 0.740 ms 1.779 ms 3 washdc5lce1-oc48.wcg.net (64.200.95.145) 0.852 ms 1.501 ms 0.712 ms 4 washdc5lcx1-broadwing-gige.wcg.net (64.200.95.130) 1.053 ms 1.181 ms * 5 216.140.8.169 (216.140.8.169) 1.660 ms 1.832 ms 1.927 ms 6 216.140.8.165 (216.140.8.165) 1.562 ms 2.031 ms 1.621 ms 7 P2-0.c0.nwyk.broadwing.net (216.140.16.14) 6.551 ms 6.494 ms 6.217 ms 8 p1-0-0.a1.nwyk.broadwing.net (216.140.10.14) 6.781 ms 6.362 ms 6.619 ms 9 67.99.58.194 (67.99.58.194) 40.930 ms 37.055 ms 8.574 ms 10 mudd-edge-1-vlan501-1.net.columbia.edu (128.59.1.41) 9.384 ms 9.243 ms 8. 644 ms 11 bart.cs.columbia.edu (128.59.19.191) 8.934 ms 7.476 ms 8.709 ms [columbia4@planetlab1 columbia4]$ ping -Q 0x06 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=7.16 ms 64 bytes from 128.59.19.191: icmp_seq=2 ttl=245 time=8.09 ms 64 bytes from 128.59.19.191: icmp_seq=3 ttl=245 time=6.49 ms 64 bytes from 128.59.19.191: icmp_seq=4 ttl=245 time=7.05 ms 64 bytes from 128.59.19.191: icmp_seq=5 ttl=245 time=6.72 ms 64 bytes from 128.59.19.191: icmp_seq=6 ttl=245 time=9.04 ms 64 bytes from 128.59.19.191: icmp_seq=7 ttl=245 time=8.45 ms 64 bytes from 128.59.19.191: icmp_seq=8 ttl=245 time=8.88 ms 64 bytes from 128.59.19.191: icmp_seq=9 ttl=245 time=7.77 ms 64 bytes from 128.59.19.191: icmp_seq=10 ttl=245 time=13.7 ms 64 bytes from 128.59.19.191: icmp_seq=11 ttl=245 time=8.37 ms --- 128.59.19.191 ping statistics --- 11 packets transmitted, 11 received, 0% loss, time 10126ms rtt min/avg/max/mdev = 6.499/8.345/13.728/1.890 ms [columbia4@planetlab1 columbia4]$ ping -Q 0x06 128.59.19.191 //---------------------------------------------------------------------- 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)~> //------------------------------------------------------------------------ : bart.cs.columbia.edu ;tcpdump -n -v -v tcpdump: listening on hme0 22:27:23.554783 65.77.223.82 > 128.59.19.191: icmp: echo request (DF) (ttl 54, id 0, len 84) 22:27:23.554817 128.59.19.191 > 65.77.223.82: icmp: echo reply (DF) (ttl 255, id 7346, len 84) //------------------------------------------------------------------------------------------ : bart.cs.columbia.edu ;ping -P 0x06 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 22:45:37.650190 128.59.19.191 > 65.77.223.82: icmp: echo request (DF) [tos 0x6,ECT(0)] (ttl 255, id 7352, len 84) 22:45:37.658416 65.77.223.82 > 128.59.19.191: icmp: echo reply (ttl 54, id 41776, len 84)