Monitoring mode gets frames from more than one channel!

Jouni Malinen jkmaline
Thu Feb 10 21:03:35 PST 2005

On Thu, Feb 10, 2005 at 07:19:52AM -0800, Ajeet Nankani wrote:

> Even though i am monitoring on particular channel(channel 1), but i also
> get frames(not all but most) from AP operating on other channel(channel
> 6).
> Why is like that?

That's the way IEEE 802.11b works.. Different channels are using
different center frequencies, but they are overlapping and radios can
receive frames from other channel, although with limited signal

> What to do to capture frames "only" on particular channel?

That would be a bit difficult since you would need to have a receiver on
all channels in order to find out which one is actually sending the
frame (e.g., based on the signal strength).

Jouni Malinen                                            PGP id EFC895FA

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