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Re: users bypassing shaper limitation



On Sat, Jun 30, 2001 at 12:07:28PM +0100, Karl E. Jorgensen wrote:
> On Sat, Jun 30, 2001 at 06:23:19AM +0200, Maurice Verhagen wrote:
> > 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.

but if you make dynamic firewall rules based on the leases file,
blocking all outside traffic, it would be efficient enough.

Sami

-- 
			  -< Sami Haahtinen >-
      -[ Is it still a bug, if we have learned to live with it? ]-
	-< 2209 3C53 D0FB 041C F7B1  F908 A9B6 F730 B83D 761C >-



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