RFC CAPWAP Protocol Base MIB May CAPWAP Control Channel: A bi-directional flow defined by the AC IP Address, WTP IP Address, AC control. The Control And Provisioning of Wireless Access Points (CAPWAP) protocol is a standard, The protocol specification is described in RFC RFC (part 1 of 6): Control And Provisioning of Wireless Access Points ( CAPWAP) Protocol Specification.
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Without obtaining an adequate license from frc person s controlling the copyright in such materials, this document may not be modified outside the IETF Standards Process, and derivative works of it may not be created outside the IETF Standards Process, except to format it for publication as an RFC or to translate it into languages other than English.
They are responsible for discovering, authenticating, and registration of APs, capwqp well as maintaining a service channel to communicate over.
This state updates the encryption keys on both devices, which is used to encrypt all further messages, until a new key is requested. CAPWAP only seeks to relay what a device is and is not capable of, in order to classify and provision the device into operation.
Current Status and Overview of the CAPWAP Protocol
Once the Frc has received the configuration, it may capwwp the Efc state. Those binding specifications for the IEEE The access point contains the wireless radio sand acts as the end point of the network, and communicates directly with user radios.
The wireless key exchange is handled in a fully encrypted fashion, by utilizing preshared keys PSKsor a security certificate model. In order to understand the CAPWAP, one must first understand the basic controller-AP structure, common to most, if not all enterprise grade wireless network deployments. This lack of customer mobility leads to less innovative product offerings from the wireless vendors. However, this simplicity does not come at the expense of flexibility.
Securing – This phase establishes an encrypted tunnel, over which a protocol can be agreed upon. Configure – An AP with a sufficient version of code may then request to capwpa configured by the controller. To centralize the authentication and policy enforcement functions for a wireless network.
Please refer to the current edition of the “Internet Official Protocol Standards” STD 1 for the standardization state and status of this protocol. In some vendor’s access points, even wireless encryption is not even performed at the AP.
SLAPP operates as the framework to make a connection between two devices, and negotiate a protocol. Consult [RFC] for a full overview. However, the header does not warrant any particular attention, and as such, will not be covered by this paper. Finally configuration takes place, and the AP is set into active mode.
Current Status and Overview of the CAPWAP Protocol
From the Run state, an AP and controller may exchange new key material, by entering the Key Update state. Split and Local MAC medium access control. Capwa; received, the controller moves to the Acquiring phase without responding yet.
Overall convergence for the APs to come online will take longer in this scenario. This document describes the base CAPWAP protocol, while separate binding extensions will enable its use with additional wireless technologies. A single Receiver thread receives and processes any requests from APs.
More consideration has been placed on ensuring that CAPWAP is secure, by taking advantage of the security offered by capwao full encryption with authentication between the controller and AP.
Overview of CAPWAP (Cisco Wireless LAN Controllers)
The physical or network entity that contains an RF antenna and wireless Physical Layer PHY to transmit and receive station traffic for rfd access networks.
In this regard, the controller acts in similar fashion to a router, by accepting and processing layer 2 frames, and then switching layer frames on to the access network.
There are 6 main portions of a controller’s duties. In the typical centralized architecture, one or more controllers manage a rf number of deployed access points. Each time the AP would have to download firmware when moving from one controller to the next with different code versions. The size of many wireless networks in large companies and universities also introduces many problems of capqap a consistent configuration across many similar devices, with potentially different hardware capabilities and physical locations.
More specifically, it fails to define key duties mentioned in [Section 2. The latter implies that the WTP performs the It usually falls to the vendor to create a specific implementation. Many vendors use this to their advantage, and create product differentiation by including features into vapwap wireless products, such as firewall capability in their controller hardware.
The controller processes the Discovery Request, and if valid, responds in the positive, and moves to Securing. LWAPP defines certain operation modes for compliant hardware. The controller awaits rfd Discovery Request from an AP. Tfc APs are much more complex, and cost much more per unit than their thinner cousins. Image Download – The newly joined AP then may request a firmware update, upon seeing the controller advertise a higher version of code.
SLAPP attempted to solve a more general problem, not limiting itself to This is accomplished by the AP broadcasting a Discovery Request.