Diagnosis
232
6.3
The ping command
BAT54-Rail/F..
Release
7.54
06/08
6.3 The ping command
With the ping command in Telnet or in a terminal connection an „ICMP Echo
Request“ is sent to the addressed host. As long as the recipient provides the
protocol and the request is not filtered by the firewall, the addressed host an-
swers with an „ICMP Echo Reply“. In case the host is not available, the last
router before the host answers with „Network unreachable“ or „Host unreach-
able“.
The syntax of the ping commando is:
D
ping [-fnqr] [-s n] [-i n] [-c n] [-a a.b.c.d] hostaddress
The meaning of the optional parameters are listed in the following table:
Parameter Meaning
-a a.b.c.d Sets the sender address of the ping (standard: IP Adresse of the router)
-a INT Sets the intranet address of the router as sender address
-a DMZ Sets the DMZ address of the router as sender address
- a LBx Sets one of the 16 Loopback addresses as sender address. Valid for x are the hexadeci-
mal values 0-f
-f flood ping: Sends many ping signals in a small amount of time. Can be used e. g. to test
the broadband of the network. ATTENTION: flood ping can easily be interpretated as a
DoS attack.
-n Sends the computer name back zu the given IP address
-q Ping command does not give an output on the panel
-r Change to traceroute mode: every interstation passed by the data package is listed
-s n Sets the package size to n Byte (max. 1472)
-i n Time between the packages in seconds
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