icmplog , a ICMP packet logger, is a part of the
jail (just another ip logger) package.
icmplog is a small (daemon) process which logs all ICMP packets to the
local host. The syslog level at which a given packet is logged is
configurable depending on the ICMP type of the message. Packets from
specific hosts can be ignored, and a default log level can be specified.
icmplog can be useful in detecting attempted denials of service, and
monitoring network traffic, especially when used in conjunction with
tcplog(8) .
The configuration is explained in the
icmplog.conf(5) manual page.
OPTIONS
"-f,
Use
filename as the configuration file instead of the default
(/etc/icmplog.conf).
