Jpcap - does anyone know about a decent tutorial?

[jpcap library|http://netresearch.ics.uci.edu/kfujii/jpcap/doc/index.html]
Hello All,
First, let me thank you for your feedback for my previous question:
http://forums.sun.com/thread.jspa?threadID=5418448&tstart=0
I found out that my problem (getting IGMP package) has no simple solution by using the standard java api.
However, when I was trying, as some of you suggested, to use the jpcap library I found that I can't...
I can't because I couldn't find a decent tutorial... moreover, I can not figure out how to use the examples that come with the package...
Does anyone has an advice for me?
Thank you in advanced,
Ron

Hi ejp,
Thank you for answering me :)
first of all: yes, I saw your comment, however, it is something I need to do as part of a project... so I just assume that I will get the igmp packet somehow...
You asked what igmp project I want to work with.
The answer is:
1) it is not that important to me as long as I will be able to catch igmp packets and anlyze them, so, if you feel you can help me with one of those jpcap packages, please tell me which one to download...
2) specificly, I found the following class:
http://jpcap.sourceforge.net/javadoc/net/sourceforge/jpcap/net/IGMPPacket.html
and followed it to : http://jpcap.sourceforge.net/ from where I download the package.
I guess that I need to write a very simple program using jpcap that:
1) catch packets
2) check if it is igmp packet
3) analyze the packet (to see if it is join/leave, to what service it was sent etc...)
can you help me with this?
I will be more then thankfull.
Thank you in advanced.
Ron

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