Is it possible to receive packets without MAC address filtering?

Is it possible to receive packets without MAC address filtering?

[Jack]

Hi,

I'm planning to do a SoftMAC project such as the one based on Madwifi. My
platform is based on bcm43xx (Buffalo WLI2-PCI-G54S). I traced the b43
device driver for several days. I found that B43_MACCTL_KEEP_CTL and
B43_MACCTL_BEACPROMISC was set in monitor mode. So, I manually set these two
bits in the driver. However, it doesn't work like iwconfig the device into
monitor mode. I use Wireshark to verify it. I also tried to set
B43_MACCTL_PROMISC bit. It doesn't work either.

How can I receive the packets in station (managed) mode but behave like in
monitor mode? Or can I read the packets through PHY directly? Since I'm not
familiar with hardware and firmware, I'm afraid that I'm wasting time on an
impossible idea. If it is possible, would you please tell me which part of
code I should trace? Thank you!


Jack

Re: Is it possible to receive packets without MAC address filtering?

[Michael Buesch]

On Thursday 24 January 2008 12:57:20 Jack wrote:
> I'm planning to do a SoftMAC project such as the one based on Madwifi. My

You're doing what? SoftMAC? Yet another 802.11 stack?

> platform is based on bcm43xx (Buffalo WLI2-PCI-G54S). I traced the b43
> device driver for several days. I found that B43_MACCTL_KEEP_CTL and
> B43_MACCTL_BEACPROMISC was set in monitor mode. So, I manually set these two
> bits in the driver. However, it doesn't work like iwconfig the device into
> monitor mode. I use Wireshark to verify it. I also tried to set
> B43_MACCTL_PROMISC bit. It doesn't work either.

You must be doing something wrong. Setting the promisc bits should be enough.

-- 
Greetings Michael.