Description:
Executed from the DOS command prompt.
Many people mistakenly think of 'ping' as just a destructive tool. This
is not the case. Although the TCP/IP ping utility can be abused in a way
that is commonly termed 'Ping Of Death' or an 'ICMP Flood', it's original
and most commonly used purpose is as a verification tool.
The ping command verifies connections to
remote computer or computers, by sending ICMP echo packets to the computer
and listening for echo reply packets. Ping waits for up to 1 second for
each packet sent and prints the number of packets transmitted and received.
Each received packet is validated against the transmitted message. By
default, four echo packets containing 32 bytes of data (a periodic upper
case sequence of alphabetic characters) are transmitted.
You can use the ping utility to test both
the computer name and the IP address of the computer. If the IP address
is verified but the computer name is not, you may have a name resolution
problem. In this case, be sure that the computer name you are querying
is in either the local HOSTS file or in the DNS database.
Parameters:
| ping [-t]
[-a] [-n count] [-l length] [-f] [-i
ttl] [-v tos] [-r count] [-s count] [[-j
computer-list] | [-k computer-list]] [-w timeout] destination-list |
| |
|
|
| |
-t |
Pings the specified computer
until interrupted. |
| |
-a |
Resolve addresses to computer
names. |
| |
-n count |
Sends the number of ECHO
packets specified by count. The default is 4. |
| |
-l length |
Sends ECHO packets containing
the amount of data specified by length. The default is 64 bytes; the
maximum is 8192. |
| |
-f |
Sends a Do not Fragment
flag in the packet. The packet will not be fragmented by gateways
on the route. |
| |
-ittl |
Sets the Time To Live field
to the value specified by ttl. |
| |
-v tos |
Sets the Type Of Service
field to the value specified by tos |
| |
-r count |
Records the route of the
outgoing packet and the returning packet in the Record Route field.
A minimum of 1 and a maximum of 9 computers may be specified by count. |
| |
-s count |
Specifies the time stamp
for the number of hops specified by count. |
| |
-j computer-list |
Routes packets via the list
of computers specified by computer-list. Consecutive computers may
be separated by intermediate gateways (loose source routed). The maximum
number allowed by IP is 9 |
| |
-k computer-list |
Routes packets via the list
of computers specified by computer-list. Consecutive computers may
not be separated by intermediate gateways (strict source routed).
The maximum number allowed by IP is 9. |
| |
-w timeout |
Specifies a timeout interval
in milliseconds. |
| |
destination-list |
Specifies the remote computers
to ping. |
Example:
|
C:\>ping
-a 195.224.74.3
Pinging
ns1.avnet.co.uk [195.224.74.3] with 32 bytes of data:
Reply
from 195.224.74.3: bytes=32 time=190ms TTL=245
Reply from 195.224.74.3: bytes=32 time=40ms TTL=245
Reply from 195.224.74.3: bytes=32 time=150ms TTL=245
Reply from 195.224.74.3: bytes=32 time=160ms TTL=245
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