LWAPP: (Lightweight Access Point Protocol):
CAPWAP:( Control and Provision of Wireless AP):
*A maximum transmission unit (MTU)
- For communication between AP and Controller (WLC), we need this Protocol.
- Fragmentation/Re-assembly: Relies on IpV4
- Path-MTU Discovery: Not supported
- Control Channel Encryption between AP and WLC: Yes (using AES)
- Data Channel Encryption between AP and WLC: No
- UDP Ports: 12222, 12223
CAPWAP:( Control and Provision of Wireless AP):
- Build on top of LWAAP with some improvement.
- The state machine of CAPWAP is similar to LWAPP's, but with the addition of a full Datagram Transport Layer Security (DTLS) tunnel establishment.
- Fragmentation/Re-assembly: CAPWAP itself does both
- Path-MTU Discovery: Has a robust P-MTU discovery mechanism, can also detect dynamic MTU changes.
- Control Channel Encryption between AP and WLC: Yes (Using DTLS)
- Data Channel Encryption between AP and WLC: Yes (using DTLS)
- UDP Ports: 5246 (ctrl) 5247 (data)
*A maximum transmission unit (MTU)
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