[119106] in North American Network Operators' Group
Re: {SPAM?} Re: IPv6 Deployment for the LAN
daemon@ATHENA.MIT.EDU (Richard Bennett)
Sat Nov 7 05:43:29 2009
Date: Sat, 07 Nov 2009 02:41:33 -0800
From: Richard Bennett <richard@bennett.com>
To: Adrian Chadd <adrian@creative.net.au>
In-Reply-To: <20091107015440.GB21938@skywalker.creative.net.au>
Cc: Bernhard Schmidt <berni@birkenwald.de>, nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
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
