felix@lucas> ping server PING linux.mantik.de (192.168.1.1) from 192.168.1.80 : 56(84) bytes of data. 64 bytes from linux.mantik.de (192.168.1.1): icmp_seq=1 ttl=255 time=1.51 ms 64 bytes from linux.mantik.de (192.168.1.1): icmp_seq=2 ttl=255 time=0.138 ms 64 bytes from linux.mantik.de (192.168.1.1): icmp_seq=3 ttl=255 time=0.129 ms --- linux.mantik.de ping statistics --- 3 packets transmitted, 3 received, 0% loss, time 2008ms rtt min/avg/max/mdev = 0.129/0.595/1.519/0.653 ms felix@lucas> >ping metalab.unc.edu PING metalab.unc.edu (152.19.254.81) from 192.168.3.9 : 56(84) bytes of data. 64 bytes from 152.19.254.81: icmp_seq=0 ttl=238 time=1059.1 ms 64 bytes from 152.19.254.81: icmp_seq=1 ttl=238 time=764.9 ms 64 bytes from 152.19.254.81: icmp_seq=2 ttl=238 time=858.8 ms 64 bytes from 152.19.254.81: icmp_seq=3 ttl=238 time=1179.9 ms 64 bytes from 152.19.254.81: icmp_seq=4 ttl=238 time=986.6 ms 64 bytes from 152.19.254.81: icmp_seq=5 ttl=238 time=1274.3 ms
traceroute:
Utility to identify where a packet has been,
to detect the routing path.
tcpdump: watches a particular interface for all the traffic that passes.