См. icmp_req=n
~$ ping 192.168.205.1
PING 192.168.205.1 (192.168.205.1) 56(84) bytes of data.
64 bytes from 192.168.205.1: icmp_req=4 ttl=62 time=3032 ms
64 bytes from 192.168.205.1: icmp_req=5 ttl=62 time=2034 ms
64 bytes from 192.168.205.1: icmp_req=6 ttl=62 time=1036 ms
64 bytes from 192.168.205.1: icmp_req=7 ttl=62 time=40.6 ms
64 bytes from 192.168.205.1: icmp_req=8 ttl=62 time=30.6 ms
64 bytes from 192.168.205.1: icmp_req=9 ttl=62 time=32.0 ms
64 bytes from 192.168.205.1: icmp_req=10 ttl=62 time=31.7 ms
64 bytes from 192.168.205.1: icmp_req=11 ttl=62 time=33.1 ms
64 bytes from 192.168.205.1: icmp_req=12 ttl=62 time=31.1 ms
64 bytes from 192.168.205.1: icmp_req=13 ttl=62 time=30.9 ms
64 bytes from 192.168.205.1: icmp_req=14 ttl=62 time=29.8 ms
64 bytes from 192.168.205.1: icmp_req=50 ttl=62 time=1029 ms
64 bytes from 192.168.205.1: icmp_req=51 ttl=62 time=35.4 ms
64 bytes from 192.168.205.1: icmp_req=52 ttl=62 time=30.8 ms