[LUNI] MAC address spoofing

[Keith T. Garner]

On 9/8/07 7:17 PM, zfh wrote:
> I have been playing with IP address spoofing on
> Scientific Linux (a distribution similar to Red Hat
> Enterprise).  I can use ifconfig to bring the
> interface down and change the mac address. (I was
> using a MAC address from another system on my network,
> which I brought up to see the MAC address and then
> shut down before trying the spoofing.)  When I bring
> the interface back up, you would think it would grab a
> different IP address from the network DHCP.  Instead,
> it either keeps the old IP address (which doesn't
> work), or it doesn't get an IP address at all.  When I
> restart, the real MAC address comes back and all works
> fine.  Am I missing something?

What ISP are you working with?

-- 
 Keith T. Garner                                        kgarner at kgarner.com
                "Make no little plans; they have no magic to
                   stir men's blood." - Daniel H. Burnham