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.

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