AP - Client Connection Message Mapping
The client connection dataset in Data Studio helps you to visualize AP and client connectivity issues and status. The client and AP exchange a series of 802.11 management frames to get to an authenticated and associated state before establishing a connection. The message IDs in the visualized data represent Wi-Fi messages exchanged between AP and Client or AP and RADIUS server during different stages of the AP-Client connection process. These messages help to determine the process stage at which the connection failed and the reasons for the failure.
| Message ID | Message Category | Message | Source | Destination |
|---|---|---|---|---|
| 1 | Probe Request | Probe Request | STA | AP |
| 2 | 802.11 Authentication | 802.11 Authentication Request | STA | AP |
| 3 | 802.11 Authentication Response | AP | STA | |
| 4 | 802.11 Association | 802.11 Association Request | STA | AP |
| 5 | 802.11 Association Response | AP | STA | |
| 6 | 802.11 Reassociation Request | STA | AP | |
| 7 | 802.11 Reassociation Response | AP | STA | |
| 8 | 802.11 Deauthentication | AP | STA | |
| 9 | 802.11 Disassociation | AP | STA | |
| 10 | 802.11 Deauthentication from STA | STA | AP | |
| 11 | 802.11 Disassociation from STA | STA | AP | |
| 21 | EAP 4-Way Handshake | 4-Way Handshake - Frame 1 | AP | STA |
| 22 | 4-Way Handshake - Frame 2 | STA | AP | |
| 23 | 4-Way Handshake - Frame 3 | AP | STA | |
| 24 | 4-Way Handshake - Frame 4 | STA | AP | |
| 31 | DHCP | DHCP Discover | STA | Broadcast |
| 32 | DHCP Offer | DHCP | STA | |
| 33 | DHCP Request | STA | Broadcast | |
| 34 | DHCP Ack | DHCP | STA | |
| 35 | DHCP NAK | DHCP | STA | |
| 41 | EAP | EAP Request | AP | STA |
| 42 | EAP Response | STA | AP | |
| 43 | EAP Success | AP | STA | |
| 44 | EAP Failure | AP | STA | |
| 51 | RADIUS | RADIUS Access Request | AP | Control Plane |
| 52 | RADIUS Access Challenge | Control Plane | AP | |
| 53 | RADIUS Access Accept | Control Plane | AP | |
| 54 | RADIUS Access Reject | Control Plane | AP |