802.1X - Factbites

802.1X - Factbites
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Topic: 802.1X

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	IEEE 802.1X - Wikipedia, the free encyclopedia
		IEEE 802.1X is an IEEE standard for port-based Network Admission Control, part of the IEEE 802 (802.1) group of protocols.
		Some vendors are implementing 802.1X with wireless access points to be used in certain situations where an access point needs to be operated as a closed access point, addressing the security vulnerabilities of WEP (see 802.11i).
		802.1X is available on certain wired network switches, and can be configured to authenticate hosts which are equipped with supplicant software.
	en.wikipedia.org /wiki/802.1x (217 words)

	RFC 3580 - IEEE 802.1X Remote Authentication Dial In User Service (RADIUS) Usage Guidelines. P. Congdon, B. Aboba, A. Smith, G. Zorn, J. Roese.
		IEEE 802.1X enables the derivation of per-Station unicast keys, known in [IEEE80211] as "key mapping keys." Keys used to encrypt multicast/broadcast traffic are known as "default keys".
		IEEE 802.1X does not require use of a backend Authentication Server, and thus can be deployed with stand-alone bridges or Access Points, as well as in centrally managed scenarios.
		EAP-Message Since IEEE 802.1X provides for encapsulation of EAP as described in [RFC2284] and [IEEE8021X], the EAP-Message attribute defined in [RFC3579] is used to encapsulate EAP packets for transmission from the IEEE 802.1X Authenticator to the Authentication Server.
	rfc.sunsite.dk /rfc/rfc3580.html (6359 words)

	IEEE 802.11 - Wikipedia, the free encyclopedia
		The original version of the standard IEEE 802.11 released in 1997 specifies two raw data rates of 1 and 2 megabits per second (Mbit/s) to be transmitted via infrared (IR) signals or in the Industrial Scientific Medical frequency band at 2.4 GHz.
		The IEEE set up a dedicated task group to create a replacement security solution, 802.11i (previously this work was handled as part of a broader 802.11e effort to enhance the MAC layer).
		This standard is continuously updated by means of amendments such as IEEE 802.11a, IEEE 802.11b etc. Periodically a new version of the IEEE 802.11 standard is produced combining the previous version of the standard and all amendments published up to that date.
	en.wikipedia.org /wiki/IEEE_802.11 (3536 words)

	UNINETT: WLAN - IEEE 802.1X
		IEEE 802.1X is a standard for port based security.
		IEEE 802.11i is a wireless implementation of 802.1X.
		Extensible Authentication Protocol (EAP- RFC 2284) is an important component of 802.1X.
	www.uninett.no /wlan/8021x.html (865 words)

	Linux WPA Supplicant (IEEE 802.1X, WPA, WPA2, RSN, IEEE 802.11i)
		In addition, simpler example configurations are available for plaintext, static WEP, IEEE 802.1X with dynamic WEP (EAP-PEAP/MSCHAPv2), WPA-PSK/TKIP, and WPA2-EAP/CCMP (EAP-TLS).
		Following methods are also supported, but since they do not generate keying material, they cannot be used with WPA or IEEE 802.1X WEP keying.
		The IEEE 802.11i amendment to the IEEE 802.11 standard was approved in June 2004 and published in July 2004.
	hostap.epitest.fi /wpa_supplicant (1142 words)

	Open1x -- Open Source Implementation of IEEE 802.1x
		IEEE 802.1x is a port based authentication protocol.
		Open1x -- Open Source Implementation of IEEE 802.1x
		When applied to IEEE 802.11, the Access Point acts as an authenticator, while a wireless station (laptop etc) is the supplicant which is authenticated by the RADIUS server (Authentication Server).
	open1x.sourceforge.net (809 words)

	What is 802.1x?
		This brings us to the IEEE 802.1x standard, which is simply a standard for passing EAP over a wired or wireless LAN.
		Understanding what the IEEE 802.1x standard is and why you should care means understanding three separate concepts: PPP, EAP and 802.1x itself.
		This makes 802.1x ideal for wireless access points, which are typically small and have little memory and processing power.
	www.networkworld.com /research/2002/0506whatisit.html (1056 words)

	802.1X Offers Authentication and Key Management
		Wireless LAN implementations of 802.1X fall outside the scope of the 802.11 standard; however, the 802.11i committee is specifying the use of 802.1X to eventually become part of the 802.11 standard.
		The use of 802.1X is well on its way to becoming an industry standard, and you would be wise to include it as the basis for your wireless LAN security solution.
		The use of IEEE 802.1X offers an effective framework for authenticating and controlling user traffic to a protected network, as well as dynamically varying encryption keys.
	www.wi-fiplanet.com /tutorials/article.php/1041171 (1496 words)

	IEEE 802.1X
		802.1X is a security standard adopted by the IEEE which has received widespread industry support.
	www.mpirical.com /companion/Wi-Fi/802.1X.htm (35 words)

	802.1X - a Whatis.com definition
		The 802.1X standard is designed to enhance the security of wireless local area networks (WLANs) that follow the IEEE 802.11 standard.
		802.1X uses an existing protocol, the Extensible Authentication Protocol (EAP, RFC 2284), that works on Ethernet, Token Ring, or wireless LANs, for message exchange during the authentication process.
		802.1X provides an authentication framework for wireless LANs, allowing a user to be authenticated by a central authority.
	searchnetworking.techtarget.com /sDefinition/0,,sid7_gci787174,00.html (313 words)

	IEEE 802.1X Authentication for Wireless Connections: The Cable Guy, April 2002
		After the wireless client is successfully authenticated using IEEE 802.1X, the switch is closed and frames are forwarded between the wireless client and nodes on the wired network.
		The IEEE 802.1X standard defines port-based, network access control that is used to provide authenticated network access for Ethernet networks.
		Because multiple wireless clients contend for access to and send data using the same channel, an extension to the basic IEEE 802.1X protocol is required to allow a wireless AP to identify the secured traffic of a specific wireless client.
	www.microsoft.com /technet/community/columns/cableguy/cg0402.mspx (1895 words)

	IEEE 802.1x Standard Used Successfully with Windows XP
		Windows XP and 802.1x provide for what is called zero configuration support, enabling laptops with a wireless adapter card to automatically detect and connect to wireless access points within range.
		802.1x is a standard drafted earlier this year by the Institute of Electrical and Electronic Engineers (IEEE) which is designed to provide enhanced security for users of Wi-Fi or 802.11b wireless LANs.
		Wayport reported that another highlight of the Windows XP and 802.1x combination is that it allows link layer authentication, enabling seamless user authentication.
	www.wi-fiplanet.com /news/article.php/905331 (630 words)

	IEEE 802.1x and EAP Primer
		IEEE 802.1X can be used with any 802 LAN physical medium.
		802.1x only provides the ability to pass this information, but leaves the encoding and semantics to external standards.
		IEEE 802.1X enables authentication and key management for IEEE 802 networks.
	hhi.corecom.com /ieee8021xandeap.htm (769 words)

	An Initial Security Analysis of the IEEE 802.1X Standard (ResearchIndex)
		RSN utilizes the recent IEEE 802.1X standard as a basis for ac- cess control, authentication, and key management.
		An Initial Security Analysis of the IEEE 802.1X Standard
		However, the IEEE has proposed a long term security architecture for 802.11 which they call the Ro- bust Security Network (RSN).
	citeseer.ist.psu.edu /566520.html (306 words)

	11-02-TBDr0-I-Pre-Authentication.doc
		However, with IEEE 802.1X pre-authentication, the 4-way handshake is not used to install the encryption and integrity keys into the encryption/integrity engine if required nor to confirm installation of the keys.
		For example, IEEE 802.1X pre-authentication can result in a substantial increase in authentication load, so that “fast reconnect” is not just a nice feature any more; it may become a practical necessity.
		With 802.1X pre-authentication in State 1, pre-authentication occurs in situations where no association has occurred and keys have not yet been plumbed and therefore there is little protection against an attacker spoofing packets.
	www.drizzle.com /~aboba/IEEE/11-02-TBDr0-I-Pre-Authentication.doc (2865 words)

	Get IEEE 802
		New IEEE 802® standards are included in the program after they have been published in PDF for six months.
		The Get IEEE 802® program makes IEEE 802® standards available at no charge in PDF format thanks to the sponsors listed to the right.
		This program grants public access to view and download current individual IEEE Local and Metropolitan Area Network standards at no charge.
	standards.ieee.org /getieee802 (227 words)

	Wireless Network Security with IEEE 802.1x
		Windows XP uses the IEEE 802.1x protocol to identify you and allow you to access these public networks without additional logons.
		And thanks to the security protocols used in the 802.1X standard, you can use your networks with a higher level of confidence in their security than even wired connections can offer.
		Now, support for the Institute of Electrical and Electronics Engineers (IEEE) 802.1x security protocol in Windows XP lets you roam from access point to access point within your corporate local area network (LAN).
	www.microsoft.com /windowsxp/evaluation/features/8021x.mspx (217 words)

	Wireless LAN Security Site
		IEEE 802.1X "network Port Authentication" was designed to scale with Ethernet, adding no per-packet overhead, and bringing the management technology of dialup networks to the wired and wireless LAN worlds.
		IEEE 802.1X is not a single authentication method; rather it utilizes Extensible Authentication Protocol (EAP) as its authentication framework.
		IEEE 802.1X is an IEEE standard (approved, June 2001) that enables authentication and key management for IEEE 802 Local Area Networks, including Ethernet, Token Ring, and FDDI.
	www.drizzle.com /~aboba/IEEE (3471 words)

	IEEE 802.1X in Secure Wireless Networking, from Wind River Systems - White Papers, Webcasts, and Case Studies - ITPapers
		The IEEE 802.1X protocol can also be used to manage policy-based bandwidth provisioning and VLAN support in conjunction with 802.11e.
		Overview: Applying the IEEE 802.1X protocol to wireless networking in conjunction with 802.11 dramatically simplifies the management of secure wireless LANs.
		This paper examines and explores the current application of 802.1X to wireless networking situations, its important role in today's network security, and future directions for the protocol.
	www.itpapers.com /abstract.aspx?dtid=1&kw=802.11&docid=55293 (337 words)

	TechNet Support WebCast: IEEE 802.1x authentication client in Microsoft Windows for wireless and wired networks
		The presentation will provide a brief overview of the IEEE 802.1x specification and the Windows implementation of the Windows 802.1x client.
		Microsoft Windows XP, Windows 2000, and Windows Server 2003 families include built-in support for IEEE 802.1x authentication.
		Learn more about IEEE 802.11 wireless LAN networking and its related authentication technologies for a Windows environment at http://www.microsoft.com/windowsserver2003/technologies/networking/wifi/default.mspx/.
	support.microsoft.com /default.aspx?scid=kb;en-us;837911 (342 words)

	Vendors hit the 802.1X mark for access, but security holes remain
		The deployment of 802.1X will lay the groundwork for future security mechanisms - like being able to stop denial-of-service attacks by blocking network access, or limiting network access to properly scanned workstations - to control network access on a user-by-user and port-by-port basis.
		It also seems that attention to implementing 802.1X has distracted vendors for hitting on other security standards such as in digital certificate processing, management interface security and event logging.
		With 802.1X in its current state, we finally are seeing the standards process offer a set of technically sound, secure access control mechanisms.
	www.networkworld.com /research/2004/0510ilabssec.html (1350 words)

	IEEE 802.1: 802.1X - Port Based Network Access Control
		IEEE 802.1: 802.1X - Port Based Network Access Control
		It is now published as a standalone standard, but is revised by 802.1X-REV (see below).
		This supplement to ISO/IEC 15802-3:1998 (IEEE Std 802.1D-1998) defines the changes necessary to the operation of a MAC Bridge in order to provide Port based network access control capability.
	www.ieee802.org /1/pages/802.1x.html (99 words)

	IEEE (802.1x) protocol [Protocol]
		Specifications for 802.1x are maintained by the Institute of Electrical and Electronics Engineers, Inc. (IEEE).
		For information on integrity checks and key encryption calculations for 802.1x, see the radius extensions draft ftp://ftp.rfc-editor.org/in-notes/rfc3580.txt.
		The IEEE (802.1x) protocol provides port-based network access control capability.
	msdn.microsoft.com /library/en-us/randz/protocol/802_1x.asp?frame=true (87 words)

	IEEE 802.1X Notes
		Linton, M. (2004, July 26), IEEE 802.1X Notes.
		Avaya Inc. (2001, September), System Set up for IEEE 802.1x Operation.
		Peretz, Matthew (2002, January 31), A Very Funky 802.1x Security Solution.
	www.personal.psu.edu /staff/m/h/mhl100/ieee-802.1x-notes.html (313 words)

	HostAP & Intel Proset
		Wireless event: cmd=0x8c00 len=20 Signal 2 received - terminating Flushing old station entries Deauthenticate all stations One thing I did notice when testing out with the WPA-PSK mode is that with hostapd-0.3.1, Intel Proset was not able to connect (same 802.1x unauthorized error) while Windows XP built in client was able to.
		Could it be due to some changes in the 802.1x code between 0.2.5 and 0.3.x that caused the errors above?
		But with hostapd-0.2.5, both Intel Proset and Windows XP were able to connect just fine.
	lists.shmoo.com /pipermail/hostap/2004-December/008861.html (357 words)

	Infosecwriters.com
		IEEE Standard 802.1x-2001 was approved by both the Institute of Electrical and Electronics Engineers (IEEE) and the American National Standards Institute (ANSI) in 2001.
		It provides port-based network access control for local and metropolitan area networks:
	www.infosecwriters.com /texts.php?op=display&id=208 (204 words)

	HOWTO-INDEX -howtos - LINUX HOWTOs - Know24.com - The Free Universal Encyclopedia and Learning Resource
		Describes the software and procedures to set up and use IEEE 802.1X Port-Based Network Access Control using Xsupplicant as Supplicant with FreeRADIUS as a back-end Authentication Server.
		Covers the use of adaptive technologies that are available for Linux.
	www.know24.com /encyclopedia/howto/HOWTO-INDEX/howtos.html (8061 words)

	Conwex net - Security Portal - Links
		Open1x - Opensource Implementation of IEEE 802.1x http://www.open1x.org/
		The IEEE P1363 Home Page - Standard Specifications For Public-Key Cryptography http://grouper.ieee.org/groups/1363/index.html
		Featured links: AES may have been broken or maybe not?
	www.conwex.net /links.html (259 words)

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In the News (Fri 25 Dec 09)