Re: [LARTC] clone MAC address

[Frank Gruellich <frank@der-frank.org>]

Hello,

* Nicolas Patik <nicolas.patik@gmail.com> 16. Nov 04:
> No, I'm not talking about natting ... I'm talking about hidding my
> computers from my ISP.

Tell me, what's the difference.  Can you give some technical description
for this 'hiding' you are talking about?

> .. or .... are you telling me that the problem with my linux box is
> about bad firewall rules?

No.  'Firewall rules' are a matter of layer 3, MACs and their so called
cloning belong to layer 2.

> Right now with my linux box doing NAT they can find that I have others
> computers connected.

Contradicting to Chris they can.  But trust me, they won't.  Finding
hosts behind a NAT router is very difficult and involves the collection
of huge amounts of traffic.[1]  After all, it will not work for any OSs.

What exactly is your problem?  For this clone-MAC-feature search the
manpage of ifconfig for 'hardware address'.  It's not supported by all
NIC drivers, but for most.  Do you change your routers from time to
time?  DHCP servers cache MACs and may not offer a second IP number if
had another interface connected some time ago.  They should flush the
cache after some days.  If they don't call them and feign a story about
a new NIC you bought recently.

HTH,
 regards, Frank.
==footnotes=[1] Ascending TCP sequence numbers, not changed by NAT, you know?
-- 
Sigmentation fault
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