Madge Networks 802.11b Manuel d'utilisateur télécharger pdf (Page 37)

frame

control

duration

address

1

address

2

address

4

address

3

payload CRC

22 66 6 2

6

0 - 2312

4

seq

control

802.11 Frame: Addressing

Address 2: MAC address

of wireless host or AP

transmitting this frame

Address 1: MAC address

of wireless host or AP

to receive this frame

Address 3: MAC address

of router interface to

which AP is attached

Address 4: used only

in ad hoc mode

Frame needs to contain sufficient information to send it across the DS

to any node that is reachable in the DS

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