HeaderStack CCNA
802.11 frames, CAPWAP, client association, and WPA — separate from the wired Ethernet path.
Separate from wired Ethernet path802.11 + CAPWAP
Wireless / WLC module
802.11 frame types, interactive address fields, management frame reference, CAPWAP tunneling, association flow, and WPA security — enterprise lightweight AP architecture.
802.11 Frame Visualizer
Interactive MAC header — toggle frame type and DS bits to see which address fields appear
Frame type
802.11 MAC frame
Address 4hidden for this frame type
QoS Controlhidden for this frame type
HT Controlhidden for this frame type
Solid violet = always present. Indigo = conditional on frame type/subtype or DS bits. Strikethrough = hidden for current selection.
Selected field
Frame Control
Type 0 — Management
Address field cheat sheet (data frames)
| To DS | From DS | Addr1 / 2 / 3 / 4 |
|---|---|---|
| 0 | 0 | DA / SA / BSSID |
| 0 | 1 | DA / BSSID / SA |
| 1 | 0 | BSSID / SA / DA |
| 1 | 1 | RA / TA / DA / SA |