{SPAM?} Re: IPv6 Deployment for the LAN

TJ trejrco at gmail.com
Sat Nov 7 15:40:42 CST 2009


Device driver? Nah.  
Just use a tool (like Scapy) to just arbitrarily, easily custom-craft any
packet he|she wants ... Yes, it is that easy.


Thanks!
/TJ


-----Original Message-----
From: Richard Bennett [mailto:richard at bennett.com] 
Sent: Saturday, November 07, 2009 15:37
To: Owen DeLong
Cc: Bernhard Schmidt; nanog at nanog.org
Subject: Re: {SPAM?} Re: IPv6 Deployment for the LAN

It's not all that easy unless the dude has hacked the device driver.

Owen DeLong wrote:
> And of course, a rogue RA station would _NEVER_ mess with that bit
> in what it transmits...
>
> Uh, yeah.
>
> Owen
>
> On Nov 7, 2009, at 2:41 AM, Richard Bennett wrote:
>
>>   The Wi-Fi MAC protocol has a pair of header bits that mean "from AP"
>>   and "to AP." In ad-hoc mode, a designated station acts as an AP, so
>>   that's nothing special. There are a couple of non-AP modes for direct
>>   link exchanges and peer-to-peer exchances that probably don't set 
>> "from
>>   AP" but I'm not sure about that.
>>   Adrian Chadd wrote:
>>
>> On Sat, Nov 07, 2009, Bernhard Schmidt wrote:
>>
>>
>>
>> As already said, wireless in infrastructure mode (with access points)
>> always sends traffic between clients through the access point, so a
>> decent AP can filter this.
>>
>>
>> How does the client determine that the traffic came from the AP versus
>> another client?
>>
>>
>>
>> Adrian
>>
>>
>>
>>
>> -- 
>> Richard Bennett
>> Research Fellow
>> Information Technology and Innovation Foundation
>> Washington, DC
>

-- 
Richard Bennett
Research Fellow
Information Technology and Innovation Foundation
Washington, DC






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