Tracing route to 67.99.58.193 over a maximum of 30 hops 1 <1 ms <1 ms <1 ms mudd-edge-1-vlan236-5.net.columbia.edu [128.59.51.1] 2 <1 ms <1 ms <1 ms nyser-gw.net.columbia.edu [128.59.1.4] 3 222 ms 220 ms 223 ms 67.99.58.193 Trace complete. : bart.cs.columbia.edu ;ping -P 0x06 67.99.58.193 67.99.58.193 is alive : bart.cs.columbia.edu ; : bart.cs.columbia.edu ;tcpdump -n -v -v 14:33:30.604613 128.59.19.191 > 67.99.58.193: icmp: echo request (DF) [tos 0x6,ECT(0)] (ttl 255, id 22634, len 84) 14:33:30.808545 67.99.58.193 > 128.59.19.191: icmp: echo reply (DF) [tos 0x2,ECT(0)] (ttl 253, id 55658, len 84) : bart.cs.columbia.edu ;ping -P 0x08 67.99.58.193 67.99.58.193 is alive : bart.cs.columbia.edu ; : bart.cs.columbia.edu ;tcpdump -n -v -v 14:35:14.309051 128.59.19.191 > 67.99.58.193: icmp: echo request (DF) [tos 0x8] (ttl 255, id 22635, len 84) 14:35:14.529158 67.99.58.193 > 128.59.19.191: icmp: echo reply (DF) (ttl 253, id 57008, len 84) : bart.cs.columbia.edu ;ping -P 0x04 67.99.58.193 67.99.58.193 is alive : bart.cs.columbia.edu ; : bart.cs.columbia.edu ;tcpdump -n -v -v 14:38:00.757043 128.59.19.191 > 67.99.58.193: icmp: echo request (DF) [tos 0x4] (ttl 255, id 22636, len 84) 14:38:00.958743 67.99.58.193 > 128.59.19.191: icmp: echo reply (DF) (ttl 253, id 59111, len 84) : bart.cs.columbia.edu ;ping -P 0x07 67.99.58.193 67.99.58.193 is alive : bart.cs.columbia.edu ; : bart.cs.columbia.edu ;tcpdump -n -v -v 14:43:03.541778 128.59.19.191 > 67.99.58.193: icmp: echo request (DF) [tos 0x7,CE] (ttl 255, id 22643, len 84) 14:43:03.763115 67.99.58.193 > 128.59.19.191: icmp: echo reply (DF) [tos 0x3,CE] (ttl 253, id 62670, len 84) : bart.cs.columbia.edu ;ping -P 0x07 128.59.1.4 128.59.1.4 is alive : bart.cs.columbia.edu ; : bart.cs.columbia.edu ;tcpdump -n -v -v 14:47:10.645822 128.59.19.191 > 128.59.1.4: icmp: echo request (DF) [tos 0x7,CE] (ttl 255, id 18112, len 84) 14:47:10.647357 128.59.1.4 > 128.59.19.191: icmp: echo reply (DF) (ttl 254, id 18112, len 84) : bart.cs.columbia.edu ;ping -P 0x05 67.99.58.193 67.99.58.193 is alive : bart.cs.columbia.edu ; : bart.cs.columbia.edu ;tcpdump -n -v -v 14:49:50.062083 128.59.19.191 > 67.99.58.193: icmp: echo request (DF) [tos 0x5,ECT(1)] (ttl 255, id 22644, len 84) 14:49:51.277134 67.99.58.193 > 128.59.19.191: icmp: echo reply (DF) [tos 0x1,ECT(1)] (ttl 253, id 1019, len 84) : bart.cs.columbia.edu ;ping -P 0x09 67.99.58.193 67.99.58.193 is alive : bart.cs.columbia.edu ; : bart.cs.columbia.edu ;tcpdump -n -v -v 14:56:06.166704 128.59.19.191 > 67.99.58.193: icmp: echo request (DF) [tos 0x9,ECT(1)] (ttl 255, id 4203, len 84) 14:56:06.381436 67.99.58.193 > 128.59.19.191: icmp: echo reply (DF) [tos 0x1,ECT(1)] (ttl 253, id 4492, len 84)