[Wlug] A second Aurora - SPARC question....

Eric Martin freak4uxxx at gmail.com
Tue Dec 23 18:25:05 EST 2008

Frank Sweetser wrote:
> Eric Martin wrote:
>> Have you tried to ping the loopback address?  I know that a fried card
>> won't respond to lo replies ( in Windows, but I'm not sure
>> what the behavior is in *NIX.  That being said, if the loopback
>> interface isn't up then we have our answer.
> That trick won't work under any self-respecting 'nix clone.  Unix based 
> systems have a virtual interface that gets configured with, and 
> doesn't care about the state of our physical adapters.
> The reason that works at all under Windows is because Windows doesn't actually 
> have a loopback interface device driver.  (okay, technically there is one, but 
> it's not installed by default.)  Instead, there's some special casing in the 
> IP stack that makes it consider a hidden, non-removable IP alias on 
> each regular network interface.
> As a side note, if you're on the same local network as the victime, you can 
> often leverage this gross hack to bypass Windows firewall rules by sending it 
> packets with the correct destination MAC address and an IP address of
Very cool hack!  Thanks for the info on NIX and lo, I figured it might
be different altogether but I wasn't sure.

Eric Martin
Key fingerprint = D1C4 086E DBB5 C18E 6FDA  B215 6A25 7174 A941 3B9F

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