I need some method to monitor internet traffic. I biggest problem is that sometimes, our bandwidth is complete stressed and I have no way to find out what user/machines is causing the heavy load.
I can look at the firewall logs, but it is not clear exactly which mahcines is causing the heavy load.
I am using SonicWall (NSA 3500 ) as my network firewall. I would really like to get a realt-time interface that shows me this information or if you can help with a procedure for me to track this activity in some other manner.
Third party tools would also be of interest to me, if not too expensive.
Thanks in advance.