Prestige 861 VDSL Modem
Ping Commands
7-1
Chapter 7
Ping Commands
This chapter shows you the information about the ping commands.
7.1 About
Ping
Ping is a command you can use to check whether the Prestige can recognize other computers on your local
network. A ping command sends a message to the computer you specify. If the computer receives the
message, it sends messages in reply. Using ping, you can test whether the path to the device is working. To
use it, you must know the IP address or the host name of the computer you are trying to communicate with.
7.2 Ping
Commands
Syntax:
Ping [-LRdfnqrv] [-c count] [-i wait] [-l preload]
[-p pattern] [-s packetsize] [-t ttl]
[-I interface address] host
This command send ICMP echo request message to a remote host. The command options are case sensitive.
Table 7-1 Ping Commands
OPTION DESCRIPTION
-L
This suppresses loopback of multicast packets.
This option only applies if the ping destination is a multicast address.
-R
This is record route.
It includes the RECORD_ROUTE option in the ECHO_REQUEST packet and
displays the route buffer on returned packets. Note that the IP header is only large
enough for nine such routes. Many hosts ignore or discard this option.
-d
This set the SO_DEBUG option on the socket being used.
-f
This is flood ping.
For every ECHO_REQUEST sent a period ''.'' is printed, while for every
ECHO_REPLY received a backspace is printed. This provides a rapid display of how
many packets are being drooped. If interval is not given, it sets interval to zero and
outputs packets as fast as they come back or one hundred times per second,
whichever is more. Only the super-user may use his option with zero interval.
