Hi,
I'm learning 802.11 and I'm using microsoft network monitor 3.4 to capture some packets, it's in netmon mode, I found the FCS(Frame Check Sequence) seems not correct.

a lot of packets are all have the same FCS:0x3100400, even if they have different content and length. According to the book, it should be the CRC value of the whole MAC fields and data body, why?
another question about the Metadata, nm3.4 always displays the 32-bytes MetaData. so the frame length displayed is wrong, for example, in the above picture the frame is 46 bytes, but it's actually 14 bytes, why it's necessary to count in the 32 bytes
of MetaData? Anyway to remove that?
Thanks.
//Brs