On 16 Mar 2005 at 9:46, M. A. Imam wrote:
How can i count the number of packets on an interface evry 2 or 5 seconds. and i want to count only specific packets like only arriving packets from port 5001
Any thoughts...
I'm wondering what your usage needs are. 1) Do you just neeed a quick view of what is going on, 2) or do your need some stable permanent statistics collector?
If the case is 1) the quick view, I will recommend the tool: "tcpstat" http://www.frenchfries.net/paul/tcpstat/
tcpstat supports tcpdump style filters (berkley packet filter) thus you should run the following command:
tcpstat -i eth1 -f 'port 5001' 5
The number 5 at the end gives you stats every 5 sec.
Greatings Jesper Brouer
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