Not just virtual IPs, but virtual MAC 2004-03-24 - By Mike Burger
Back
I know I can use the "ip addr add " command to add IPs to my firewall system 's
public interface. What I 'd like to be able to do, however, is to
masquerade MAC addresses, as well.
I recently acquired business class DSL (recently being yesterday). I though
that I 'd be able to simply set the modem/router to bridging mode (it 's a
2Wire 1000HW) and fly. Unfortunately, since I still have to do PPPoE,
and the techs don 't think I can do this even if I have a PPPoE client running
on the system, instead of the router, this router won 't support what I want
to do.
I probably have the option of swapping routers, but since I 'm already up
and running, I 'd like the option of trying to make it work with this one.
Since the modem/router provides DHCP (after a fashion), and does it in a
relatively "static " way, based on MAC, I 'd like to be able to masquerade
MAC addresses as well as IPs.
So...the $65,000 question now becomes:
How, if at all possible, to I add/masquerade/fake MAC addresses on an ethX
interface under linux (FC1, in this case, but the answer is probably generic
enough)?
Thanks.
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