Re: [PATCH 18/24] rt2x00: Add Multicast/Broadcast filtering

[Ivo van Doorn <ivdoorn@gmail.com>]

On Friday 03 August 2007, Johannes Berg wrote:
> On Fri, 2007-08-03 at 17:36 +0200, Ivo van Doorn wrote:
> 
> > But that would mean that when a non-monitor and monitor interface are
> > enabled at the same time, the montitor interface is quite pointless since
> > all frames can be caught on the regular interface as well. 
> 
> Not true, monitor mode interfaces gives you a lot more info (radiotap.)
> 
> > A monitor interface is supposed to catch as many frames as possible,
> > if a monitor interface does not catch frames not directly send to it, it won't
> > catch anything except beacons.
> 
> Not if we want to use monitor interfaces for the userspace mlme.
> 
> > Even when there is only 1 interface which is in monitor mode, the user shouldn't
> > have to set the device into promisc mode right?
> 
> Actually, imho they should have to. And tcpdump always does anyway.

Well I hope so, otherwise I'll get quite a lot of bugreports. ;)

Next rt2x00 release will not treat monitor mode interfaces special.
Just read the http://www.linuxwireless.org/en/developers/mac80211/semantics article
So the next rt2x00 will comply with that.

Ivo