Monitoring Traffic From Tap

yodds · 06-24-2013, 10:06 AM

Hi All,

I am creating a hardware tap as shown here:
http://www.instructables.com/id/Make...p6/Third-jack/

And I want some advise as to what I can use to monitor how much data each IP address is using per day/week/month/year. And also be able to see the current throughput rate and maybe even by which protocols? Perhaps use ipfire or smoothwall and somehow route to a virtual interface which is /dev/null?

Has anyone any ideas or know of any OpenSource software which can easily do this?

szboardstretcher · 06-24-2013, 03:22 PM

Well, you have lots of options.

Wireshark is one of the more popular graphical packet capture programs.

Tcpdump is its command line equivalent. Cacti is a popular graphing solution for bandwidth usage.

I've used lots of open source analyzers, but my favorite, (free), software is Colasoft Capsa.

http://www.colasoft.com/capsa/