This is our old Q&A Site. Please post any new questions and answers at

Well, the title of the question is the question itself :P

I have been looking for the answer into the 802.11-2007 and 2012 standards, but I didn't find anything.

Hope you'll be able to help me with this.

I supose that maybe must be a combination of flag values in the MAC (Medium Access Control) header, which determines if the frame needs to carry the LLC header.

asked 01 Mar '13, 10:13

CapitanShinChan's gravatar image

accept rate: 0%

An 802.11 frame should contain an LLC header if, and only if, it's a Data frame. The frame type and subtype are part of the Frame Control field in the MAC header; Data is one of the frame type values (the others are Control and Management). The subtype doesn't matter - all Data frames should contain an LLC header, and no other frames should.

permanent link

answered 01 Mar '13, 15:43

Guy%20Harris's gravatar image

Guy Harris ♦♦
accept rate: 19%

Why Wireshark does not show LLC header in encrypted data packets?

(16 Mar '17, 06:44) SuBCo

Because you have to decrypt the capture.

LLC exists at a higher OSI layer than the 802.11 header. All data above the WiFi header is encrypted which includes the LLC

(16 Mar '17, 13:06) Amato_C
Your answer
toggle preview

Follow this question

By Email:

Once you sign in you will be able to subscribe for any updates here



Answers and Comments

Markdown Basics

  • *italic* or _italic_
  • **bold** or __bold__
  • link:[text]( "title")
  • image?![alt text](/path/img.jpg "title")
  • numbered list: 1. Foo 2. Bar
  • to add a line break simply add two spaces to where you would like the new line to be.
  • basic HTML tags are also supported

Question tags:


question asked: 01 Mar '13, 10:13

question was seen: 6,584 times

last updated: 16 Mar '17, 13:06

p​o​w​e​r​e​d by O​S​Q​A