RE: Blocking Access to Non-domain computers

[Thomas TS <ttsoares () orion ufrgs br>]

On Sun, 2004-08-29 at 19:51 +0100, Barrie Dempster wrote:
> On Wed, 2004-08-25 at 21:46, Steven A. Fletcher wrote:
> > Certainly!  There are a number of products that will do such a
> thing.
> > Microsoft has had such things for a while now, even going back to
> the NT
> > 4 days.  On NT, they had MS Proxy which has now become Microsoft
> > Internet Security and Acceleration (ISA) Server.  There are other
> > products, too, but that is one example.
...
> Your only option for restricting DHCP access is to use MAC address
> filtering (which is trival to bypass) although if you combine this
> with IPSEC, 

So, now I am "just curious" about how to lie a MAC to get thought a MAC
access list barrier...

Could you give a proof-of-concept description on this matter ?




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