You asked for some free\inexpensive network monitoring tools. I have used
GFI LanGuard network monitoring tool which does a great job. You can down
load a free test version at www.gfi.com.
We use SonicWall pro 3060 as our firewall and it monitor the network as
well. Like you, I have a network monitor provided by my ISP. When I notice
the Internet slowing down, I check the ISP monitor. Next, the Sonicwall
logs all network traffic so I can see by IP address who is using the
bandwidth. Once I have an IP number, I use Netscan, a free tool that scans
the network and reports netbios names along with an IP number. Using these
two tools together I can find who or what is using the bandwidth.
Hope this helps!!
LCDR Mike Logan
Director of Technology
Missouri Military Academy
204 N Grand Street
Mexico, MO USA 65265
573.581.1776 ext. 428
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