messages from and to the control planes (session, route, and connection). It also specifies the Basic IRTP (Inter-Route Tunneling Protocol) which is designed for transporting packets to/from other configured routes over the InUse route. This sublayer also enables EAP (Extensible Authentication Protocol) for ensuring privacy, authentication of allowed devices, and authorization for subscribed services. Lastly, it supports RoHC (Robust Header Compression) Support Protocol for enabling compression of upper-layer packet headers. 6.4.2.5 Control Planes The Connection Control Plane provides air link connection establishment and maintenance services. The Session Control Plane provides protocol negotiation and protocol configuration services and establishes the configurable internal parameters required by the AT and AN. The Route Control Plane provides creation, maintenance, and deletion of routes. 6.4.2.6 Security Functions Security functions include functions for ciphering, message integrity protection and key management. Ciphering is performed in order to encrypt and decrypt the Radio Link Protocol packets via AES Ciphering Protocol. AES (Advanced Encryption Protocol) is also known as Rijndael, name after its inventors Vincent Rijmen and Joan Daemen. Message integrity is provided by Basic Message Integrity Protocol that provides a method for integrity protection of signaling messages by applying the AES CMAC (Cipher based MAC) function. The Key Management functionality is enabled via Basic Key Exchange Protocol that provides a method for generating security keys at the access terminal and the access network based on a pair-wise Master Key. The pair-wise Master Key is established by higher layer protocols, such as EAP. The exchange protocol also protects against a man-in-the-middle attack where a rogue entity causes the access terminal and the access network to agree upon a weaker security protocol. 6.4.2.7 PHY and MAC MIB The MAC and PHY Management Information Base (MIB) provides an interface to enable operation, admi