User`s guide

Aironet Wireless Communications, Inc. 7-37 Confidential and Proprietary
The following table shows the fields in the receive and transmit FID with an 802.3 Header.
Offset Receive FID Transmit FID
Control Header
+0x00 RxTime SwSupport
+0x02
+0x04 Status Status
+0x06 PayloadLen PayloadLen
+0x08 Rsv/Signal TxControl
+0x0A Rate/Freq AID
+0x0C RxAssocCnt/Rsv TxRetries
+0x0E TxAssocCnt/Rate
+0x10 PLCP MaxLongRetry/MaxShortRetry
+0x12 PLCP…
802.11 Header
+0x14 FrameControl FrameControl
+0x16 Duration Duration
+0x18 Address1 Address1
+0x1A
+0x1C
+0x1E Address2 Address2
+0x20
+0x22
+0x24 Address3 Address3
+0x26
+0x28
+0x2A SeqCtl SeqCtl
+0x2C Address4 Address4
+0x2E
+0x30
Protocol GAP
+0x32 GapLen GapLen
---- Gap[ ] Gap[ ]
802.3 Header -- may be disabled
+0x34* Status Status
+0x36* PayloadLen PayloadLen
+0x38* DestAddr DestAddr
+0x3A*
+0x3C*
+0x3E* SrcAddr SrcAddr
+0x40*
+0x42*
Payload
+0x44* Payload[PayloadLen] Payload[PayloadLen]
During transmission of ethernet payloads, the PC4500/4800 may overwrite the 802.3 Header Source
Address (SrcAddr) with protocol encapsulation headers that are required to transmit the payload onto the
wireless LAN.