Forwarding Modes: WLAN User Traffic

Tunnel Mode:

• -Access Point creates a GRE tunnels to the controller.
• -Each Access Points creates tunnel per WLAN, per radio, and additional tunnel for a keepalive mechanisms.
• -The user traffic via GRE tunnel to the controller are encrypted.

Decrypt-Tunnel Mode:

• – Access Point creates a GRE tunnels to the controller.
• -Access Point decrypts user traffic and send it via GRE tunnel to the controller.

Bridge:

• -Access Point receives packets and decrypts them.
• -Access Point performs a translational bridging function which converts the 802.11 frames into standard Ethernet frames, and forward towards their destinations.
• -Not recommended deployment, the stateful firewall are not enforced.