ping

This command enables you to ping a network host. You can specify either the IPv4 or IPv6 address here. This command pings the Sensor and returns a response with the following values:

Value	Description
icmp_seq	Number of times the Sensor is pinged
ttl	Number of hops between the source and destination
time taken	The average time taken by the Sensor to respond to the ping
packets transmitted	Number of packets transmitted during the ping
packets received	Number of packets received during the ping
packet loss	Number of packets lost during the execution of the command
rtt min/avg/max	Minimum, average and maximum time taken for a round trip in a ping cycle

Syntax:

ping <A.B.C.D><A:B:C:D:E:F:G:H> -c <1-100>

Parameter	Description
<A.B.C.D>	Denotes the 32-bit IP address written as four eight-bit numbers separated by periods. Each number (A,B,C or D) is an eight-bit number between 0-255.
<A:B:C:D:F:G:H>	Denotes the 128-bit address written as octet (eight groups) of four hexadecimal numbers, separated by colons. Each group (A,B,C,D, etc.) represents a group of hexadecimal numbers between 0000-FFFF.
-c <1-100>	Denotes the number of times to ping the Sensor. This is optional and can be used if the Sensor needs to be pinged multiple times.

Sample Output:

For Sensor, the output is as shown below:
intruShell@fc_4050> ping 172.16.100.100
PING 172.16.100.100 with 32[60] bytes of data
40 bytes from host 172.16.100.100: icmp_seq=1 ttl=64 time taken 0.30 msec
--- 172.16.100.100 ping statistics --- 1 packets transmitted, 1 received, 0% packet loss, time 0.30ms
rtt min/avg/max = 0.30/0.30/0.30 msec
For Sensor, when it is pinged multiple times, the output is as shown below:
intruShell@fc_4050> ping 172.16.100.100 -c 3
PING 172.16.100.100 with 32[60] bytes of data
40 bytes from host 172.16.100.100: icmp_seq=1 ttl=64 time taken 0.41 msec
40 bytes from host 172.16.100.100: icmp_seq=2 ttl=64 time taken 0.20 msec
40 bytes from host 172.16.100.100: icmp_seq=3 ttl=64 time taken 0.19 msec
--- 172.16.100.100 ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 0.80ms
rtt min/avg/max = 0.19/0.26/0.41 msec

Example:

The following command pings a 128 bit address written as an octet of four hexadecimal numbers.

ping 2001:0db8:8a2e:0000:0000:0000:0000:0111

Applicable to:

NS-series Sensors