Description:
Entering the ping command at the prompt of a Telnet or SSH connection sends an "ICMP echo request" packet to the target address of the host which is to be checked.
If the receiver supports the protocol and the ping is not filtered by a firewall, the host responds with an "ICMP echo reply". If the target host is unreachable, the last router before the host responds with "network unreachable" or "host unreachable".
Requirements:
Procedure:
The syntax of the ping command is as follows:
ping [-fnqr] [-s n] [-i n] [-c n] [-a a.b.c.d|INT|DMZ|LBx] target host
The meaning of the optional parameters is explained in the following table:
Parameters and their meanings:
| -a |
a.b.c.d Sets the sender address of the ping (default: IP address of the router) |
| -a INT |
Sets the intranet address of the router as the sender address |
| -a DMZ |
Sets the DMZ address of the router as the sender address |
| -a LBx |
Sets one of the 16 loopback addresses in the LANCOM as the sender address. Valid values for x are the hexadecimal values 0 – f |
| -a Interface |
Sets the IP address of the corresponding interface as the sender address |
| -f flood ping |
Sends a large number of pings in a short time. Useful, for example, to test the network bandwidth. WARNING: flood ping can easily be misinterpreted as a DoS attack. |
| -n |
Returns the computer name of a specified IP address |
| -q |
Ping command returns no output to the console (quiet) |
| -r |
Changes to traceroute mode: The path taken by the data packets to the target computer is displayed with all intermediate stations |
| -s n |
Sets the packet size to n bytes (max. 1472) |
| -i n |
Time between packets in seconds |
| -c n |
Send n ping signals |
Target computer address or hostname of the target computer stop /<RETURN> Entering "stop" or pressing the return key
stops the ping command. |
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