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Address Field Description
To DS
From DS
0
0
0
1
1
0
1
1
n
Addr 1 = All stations filter on this address.
n
Addr 2 = Transmitter Address (TA)
– Identifies transmitter to address the ACK frame to.
n
Addr 3 = Dependent on To and From DS bits.
n
Addr 4 = Only needed to identify the original source of
WDS (Wireless Distribution System) frames.
WLAN-IEEE802.11 Tutorial (Maximilian Riegel), 021018-wlan-tutorial.ppt
Address 1
Address 2
DA
SA
DA
BSSID
BSSID
SA
RA
TA
Address 3
Address 4
BSSID
N/A
SA
N/A
DA
N/A
DA
SA
Page 40
© Siemens, 2002
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