Sorry loopack001, the answer is correct as is…
CCNA Wireless Official Cert Guide; Chapter 6 Understanding 802.11 Frame Types, Page 135, Table 6-2. Client to DS.
Address 1 and 2 always refer to the devices that are communicating with each other, with the receiver device being listed first in the 802.11 frame. Address 1 is the AP (BSSID), and address 2 is the client Host A.
Address 3 and 4 always refer to the optional destination and sources of this frame, with the optional receiver device being listed first in the 802.11 frame (after addresses 1 & 2). Address 3 is the other client Host B.
If the frame was being passed through a mesh network, address 1 and 2 would be the child APs talking to each other, while address 3 and 4 would be the receiver BSSID and the sender BSSID.
Address 4 is the child AP’s client, which originated the frame.
If you’re struggling to keep these in order, always remember that layer 2 routing keeps the MAC addresses that are most locally relevant to the conversation, at the front of the frame, so that switching is not delayed unnecessarily.
The right order is:
Host A –> AP –> Controller –> Host B
Sorry loopack001, the answer is correct as is…
CCNA Wireless Official Cert Guide; Chapter 6 Understanding 802.11 Frame Types, Page 135, Table 6-2. Client to DS.
Address 1 and 2 always refer to the devices that are communicating with each other, with the receiver device being listed first in the 802.11 frame. Address 1 is the AP (BSSID), and address 2 is the client Host A.
Address 3 and 4 always refer to the optional destination and sources of this frame, with the optional receiver device being listed first in the 802.11 frame (after addresses 1 & 2). Address 3 is the other client Host B.
If the frame was being passed through a mesh network, address 1 and 2 would be the child APs talking to each other, while address 3 and 4 would be the receiver BSSID and the sender BSSID.
Address 4 is the child AP’s client, which originated the frame.
If you’re struggling to keep these in order, always remember that layer 2 routing keeps the MAC addresses that are most locally relevant to the conversation, at the front of the frame, so that switching is not delayed unnecessarily.