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A basic form of NAC is the 802.1X standard. Network access control aims to do exactly what the name implies—control access to a network with policies, including pre-admission endpoint security policy checks and post-admission controls over where users and devices can go on a network and what they can do.
A typical (non-free) WiFi connection is a form of NAC. The user must present some sort of credentials (or a credit card) before being granted access to the network. In its initial phase, the Cisco Network Admission Control (NAC) functionality enables Cisco routers to enforce access privileges when an endpoint attempts to connect to a network.
A notable example of the issue occurred in 2005 when a machine attached to Walmart's network hacked thousands of their servers. [ 2 ] IEEE 802.1X defines the encapsulation of the Extensible Authentication Protocol (EAP) over wired IEEE 802 networks [ 3 ] : §3.3 and over 802.11 wireless networks, [ 3 ] : §7.12 which is known as "EAP over LAN ...
Any system failing the checks will be denied general access to the network and will probably be placed in a quarantined role (how exactly a failed system is handled depends entirely on how the Clean Access Manager is configured, and may vary from network to network. For example: a failed system may simply be denied all network access afterward).
Cisco Technology Handbook: SDLC and Derivatives: SDN: Software-defined networking Architecture Software-defined networking: SFD: Start-of-frame delimiter (Ethernet, HDLC, etc.) Link layer IEEE 802.3 (Ethernet), or RFC 2687 (HDLC), for examples SFP: Small form-factor pluggable Hardware Seagate Specification: S-HTTP: Secure HTTP (rarely used)
3NF—third normal form; 386—Intel 80386 processor; 486—Intel 80486 processor; 4B5BLF—4-bit 5-bit local fiber; 4GL—fourth-generation programming language; 4NF—fourth normal form; 5GL—fifth-generation programming language; 5NF—fifth normal form; 6NF—sixth normal form; 8B10BLF—8-bit 10-bit local fiber; 802.11—wireless LAN
NAC Architecture, a U.S. design firm Nanjing Automobile (Group) Corporation , a Chinese subsidiary of SAIC Nickel Asia Corporation , largest producer of nickel ore in the Philippines
MEF, founded in 2001, is a nonprofit international industry consortium, of network, cloud, and technology providers. [1] MEF, originally known as the Metro Ethernet Forum, was dedicated to Carrier Ethernet networks and services, and in recent years, significantly broadened its scope, which now includes underlay connectivity services such as Optical, Carrier Ethernet, IP, along with overlay ...