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slpwkr 07-23-2006 11:55 PM
How can I monitor ICMP
 
Hi guys how will I monitor the ICMP (pings) to my linux machine? any command?

The netstat command does not display the IP address of the ICMP source.

tgo 07-23-2006 11:58 PM
Code:
iptables -I INPUT -p icmp -j LOG --log-level 7 --log-prefix "ping: "
this will log all icmp traffic that comes in on your machine. the logged info will have dest/src ip and icmp type.

Matir 07-24-2006 12:05 AM
Be careful, you can get hit by a lot of ICMP traffic in a short period of time, which could lead to an inadvertant DoS of your system with the logging. You may want to use the limit module to reduce the number of log entries.

~=gr3p=~ 07-24-2006 04:14 AM
http://linux.maruhn.com/sec/icmpinfo.html


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