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ping

Name

ping -- Verify network connectivity

Synopsis

ping [-v ] [-i local_IP_address] [-l length] [-n count] [-t timeout] [-r rate] {-h server_IP_address}

Arguments

NameTypeDescriptionDefault
-vBooleanBe verbose, displaying information about each packet sent.quiet
-n local_IP_addressNumberControls the number of packets to be sent.10
-i local_IP_addressNumeric IP or DNS nameThe IP address RedBoot should use.Value set by ip_address
-h server_IP_addressNumeric IP or DNS nameThe IP address of the host to contact.none
-l lengthNumberThe length of the ICMP data payload.64
-r lengthNumberHow fast to deliver packets, i.e. time between successive sends. A value of 0 sends packets as quickly as possible.1000ms (1 second)
-t lengthNumberHow long to wait for the round-trip to complete, specified in milliseconds.1000ms (1 second)

Description

The ping command checks the connectivity of the local network by sending special (ICMP) packets to a specific host. These packets should be automatically returned by that host. The command will indicate how many of these round-trips were successfully completed.

Examples

Test connectivity to host 192.168.1.101. 
RedBoot> ping -h 192.168.1.101
Network PING - from 192.168.1.31 to 192.168.1.101
PING - received 10 of 10 expected

Test connectivity to host 192.168.1.101, with verbose reporting. 
RedBoot> ping -h 192.168.1.101 -v -n 4
Network PING - from 192.168.1.31 to 192.168.1.101
 seq: 1, time: 1 (ticks)
 seq: 2, time: 1 (ticks)
 seq: 3, time: 1 (ticks)
 seq: 4, time: 1 (ticks)
PING - received 10 of 10 expected

Test connectivity to a non-existent host (192.168.1.109).
RedBoot> ping -h 192.168.1.109 -v -n 4
PING: Cannot reach server '192.168.1.109' (192.168.1.109)

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