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Re: users bypassing shaper limitation



On Sat, Jun 30, 2001 at 06:23:19AM +0200, Maurice Verhagen wrote:
> 
> On Fri, 29 Jun 2001, anon wrote:
> 
> > my problem is that some local users are changing their own local ip numbers
> > (like, 192.168.1.40 to 192.168.1.50) then bypassing the Traffic shaper
> > bandwidth limitation. (that was set on 192.168.1.40)
> > 
> > anyone know how can i prevent this ?
> 
> This first that pops into mind is use DHCP and give a IP-lease to the
> machines in your local network based on the NIC's Mac address. I
> guess the only way out for the "bad guys" is to swap the NICs from another
> machine to get the same effect as changing the IPs now.

Nope. DHCP does not prevent people from changing their IP
addresses, it merely makes it marginally more difficult. 
Besides, the bad guys may choose not to use DHCP - this is
entirely up to the config on the client machines.

> 
> Regards,
> Maurice Verhagen

-- 
Karl E. Jørgensen
karl@jorgensen.com
www.karl.jorgensen.com
==== Today's fortune:
MSDOS didn't get as bad as it is overnight -- it took over ten years
of careful development.
	-- dmeggins@aix1.uottawa.ca

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