Re: Detect proxy software - Internet access control

[Eric Hagen <eric () sandpile net>]

I think some sort of link-layer authentication like the EAP (extensible 
authentication protocol) within the 802.1x standard might do what you 
request.   It's a link-layer authentication protocol and could be used 
to do per-port auditing of systems.  However, it would mean 
reconfiguring every host, switch and router on the network to support 
802.1x awareness and establishing a RADIUS (or other type of 
authentication) server if you don't have one already.

Maybe looking for a "freeware tool" is a bit premature.  I'm not 
entirely sure it's even possible given the nature of IP and the 
capabilities of modern routers and operating systems to seamlessly 
provide NAT services, even using VPN, PPPoE, etc.

Eric Hagen

Milind Nanal wrote:

> Dear,
>
> I am looking for any freeware/ commercial evaluation tool which would detect
> the  systems running with proxy application to serve other system. I want to
> have strict control on Internet access. So I want only allowed users should
> use the Internet facility & they should not be running proxy application to
> server Internet for their friends.
>
> Regards,
>
> Milind 
>
>
>
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