Name

icmpinfo

Synopsis

icmpinfo [options]

Description

TCP/IP command. Intercept and interpret ICMP packets. Print the address and name of the message’s sender, the source port, the destination port, the sequence, and the packet size. By default, provide information only about packets that are behaving oddly.

Options

-k

Kill the syslogd process begun by -l.

-l

Record via syslogd. Only a privileged user may use this option.

-n

Use IP addresses instead of hostnames.

-p

Suppress decoding of port number: do not attempt to guess the name of the service that is listening at that port.

-s

Include IP address of interface that received the packet, in case there are several interfaces on the host machine.

-v

Verbose. Include information about normal ICMP packets. You may also specify -vv and -vvv for extra verbosity.

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