Skip to main content

IEEE 802.1X

What is IEEE 802.1X?

IEEE 802.1X is an IEEE standard for post based network access control (PNAC). It is a part of IEEE 802.1 group of networking protocols. It provides an authentication mechanism to devices wishing to attach to a LAN or WLAN. IEEE 802.1X defines the encapsulation of the extensible authentication protocol (EAP), which is known as “EAP over LAN” or EAPOL. EAPOL was originally designed for IEEE 802.3 Ethernet in 802.1X-2001, but it was clarified to suit other IEEE 802 LAN technologies such as IEEE 802.11 wireless and fiber distribution data interface (ISO 9314-2) in 802.1X-2004. 802.1X authentication involves three parties such that a supplicant, an authenticator, and an authentication server.

The supplicant is a client device such as laptop that can be able to attach to the LAN or WLAN. The term “supplicant” is also used interchangeably to refer to the software running on the client that provides credentials to the authenticator. The authenticator is a network device which provides a data link layer between the client and the network and can allow or block network traffic between the two, such as an Ethernet switch or wireless access point.

The authentication server is typical trusted server that can receive and respond to the requests for network access, and can tell the authenticator if the connection is to be allowed, and various settings that should apply to that client’s connection or setting. Therefore the authentication server typically run software supporting the RADIUS and EAP protocols. In some cases, the authentication server software may be running on the authenticator hardware.

Typical Authentication Procedure

The typical authentication procedure consists of

  • Initialization
  • Initiation
  • Negotiation
  • Authentication


Learn about IEEE 802.11b

   

Labels:

Comments

Post a Comment

Popular posts from this blog

Printer

What is Printer? Another widely used output device is a printer and it is a computer peripheral device. A printer produces a hard copy of a processed text or a result. A hard copy refers to a permanent human-readable text or graphics taken on physical print media such as paper or transparency. A printer will use toner to provide a quality print on paper, a toner is a replaceable material. Once the toner gets empty we can refill it and reuse it.  Most of the printers are used for commercial purposes such as private offices, industries, government offices, photo studios, etc,. Most of the printers are used to print emails, documents, files, images, color photos, color documents, color posts, banners, advertisement posters, etc,. There are the following 5 types of printers such as dot matrix printer, inkjet printer, laser printer, dye-sublimation printer, and plotter printer this are all the printer which uses nowadays for a printing purpose. A printer is characterized by the followin...
6 comments
Read more

Optical Disk Drives

What is Optical Drives? Optical Drives is a hardware device which used for reading and writing  a data in CD and DVD Disc. It uses electromagnetic waves to produce visible light spectrum which provide a read/write data process in optical disc. The CD was develop by Sony and Denon which is introduce in 1984 and the storage capacity is 650 MB. The DVD is develop by Panasonic, Sony, and Toshiba which is introduce in 1995 and the storage capacity is 4.7 GB. Types of Optical Disk Drives Some of the commonly used optical storage devices compact disks are Compact Disk Read Only Memory (CD-ROM) Compact Disk Recordable (CD-R) Compact Disk Rewritable (CD-RW) Compact Disk Digital Video Disc (DVD) Types of Optical Disk Drives Compact Disk Read Only Memory (CD-ROM) The Compact Disk Read Only Memory it contains data were computers can read but not write or erase in CD-ROM it is a type of read-only memory. In the 1990s CD-ROM was use for software and data distribution for the computer. Some ...
Post a Comment
Read more

Cloud Computing

What is Cloud Computing? Cloud computing is a general term for anything that involves storing data, accessing data and programs over the internet instead of your computer’s hard drive. It is usually classified on the basis of location or on the service that the cloud is offering. The name “cloud computing” that often used to represent the Internet in flowcharts and diagrams. Cloud Computing Based on Service The four categories of cloud computing based on service are such as Infrastructure as a service (IaaS), Platform as a service (PaaS), Software as a service (SaaS), and Function as a service (FaaS). These are also called the cloud computing stack because they on top of one another. Cloud Computing Based on Location The four types of cloud computing based on location are such as public cloud, private cloud, hybrid cloud, and community cloud. They are compare to provide different levels of security and management requirements, it will depend on which type of data you are working with.
Post a Comment
Read more