good software for monitoring my local network

i want software for monitoring my local network that meet these requirements if it's possible:
1- report for the download and the upload bandwidth for every pc on the network.
2- set limited download size per time for example(1GB per month for downloading).
3- block pc from accessing the internet.

thanx!
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cauosAsked:
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tigermattConnect With a Mentor Commented:

There is no way you can use software on an individual computer to monitor the connections of specific computers. Similarly you cannot restrict the download size on a daily/weekly/monthly basis at the computer itself. Some sort of proxy is required to control this.

For a home network, a proxy server would probably be overkill. ISA Server would cost way too much to license and a dedicated machine would be required to run the proxy.

#3 may be possible, depending on your router. Some routers have the ability to block particular PCs from accessing the Internet based on IP address. Alternatively if all machines connect wirelessly, you could implement MAC address filtering and then add/remove the MAC addresses based on when PCs can have Internet access or not.

#1 and #2 are not possible without a dedicated proxy server.

-Matt
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tigermattCommented:

You need a proxy server. The proxy server sits at the perimeter of the network and can monitor and control exactly the things you are specifying.

ISA Server is the Microsoft proxy. You could also look at Squid, which is based on Linux. http://www.squid-cache.org/

-Matt
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cauosAuthor Commented:
thanks tigermatt; but all my local home network consist of 6 laptops and one wireless router; do you think ISA server is good in this situation; also i want software to be installed on my personal laptop not dedicated server.
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cauosAuthor Commented:
so there is no way to control what is going on in my network ?! :(
for #3 i already blocked some PCs based on MAC address using the router;
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tigermattCommented:

There is no way to achieve the granular monitoring and control you want without having some enterprise-level gateway device. A Home/SOHO network does not generally require monitoring and control of every PC; this is the reason the ability to have this control is not built into SOHO routers.

If you truly do need this, a proxy server is the product you would need. I would strongly question why you need this control in a home environment though.

-Matt
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cauosAuthor Commented:
i understand you; i want to answer your question ;when you have 6PCs and everyone download from torrent website they make the internet connection very slow or deadly slow :(. anyway thanks dude for clarifying those stuffs
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