Re: 802.11 + radio headers question...

[Guy Harris <guy () alum mit edu>]

On Apr 15, 2009, at 11:19 AM, Eddie Harari wrote:

> how come 22 bytes offset with no Qos ?
> in the case both are not set (TO DS and From DS ) then Address 1 is
> destination , adress 2 is source  and address 3 is bssid , so there  
> are
> 18bytes of addresses,

There are 18 bytes of address, *but* when I read "the gap between the  
destination address and the IP header", I interpret that as "the gap  
between the *end* of the destination address and the beginning of the  
IP header", so that would be *12* bytes of address (address 2 and  
address 3), 2 bytes of sequence control, and 8 bytes of 802.2 and  
SNAP, i.e. 22 bytes.

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