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ALSO CALLED: Virtual Local Area Networks Hardware, Virtual Local Area Networks Software, IEEE 802.1q, Logical LAN, Virtual LAN Hardware, VLAN Hardware, VLAN Software, Media Access Control Bridges, Virtual Local Area Networks, MAC Bridges, Virtual LAN Software, VLANs, 802.1q, Virtual LAN, Virtual LAN Appliances, Virtual Bridged LAN, Virtual Bridged Local Area Networks
DEFINITION: VLAN hopping (virtual local area network hopping) is a method of attacking a network by sending packets to a port that is not normally accessible from a given end system. (A VLAN is a local area network with a definition that maps devices on some other basis than geographic location - for example, by department, type of user, or primary application.) A VLAN hopping attack can occur in either of two  … 
Definition continues below.
VLAN Reports
14 Matches
Network Evolution E-Zine: Next-Generation Network Management Techniques
sponsored by SearchNetworking.com
EZINE: The February edition of the Network Evolution E-zine explore the latest advances in DevOps and uncover what you need to know for working within the movement. Also read several other featured articles!
Posted: 02 Feb 2012 | Published: 02 Feb 2012

SearchNetworking.com

Meraki White Paper: Integrating the Apple iPad® Into Enterprise Wireless Networks
sponsored by Meraki
WHITE PAPER: Access this whitepaper to discover steps you should take before integrating iPads, tablets, and other wireless devices into your network to maintain manageability and security and offer a good user experience.
Posted: 20 Jan 2012 | Published: 20 Jan 2012

Meraki

Dell and the Next Generation Data Center
sponsored by Dell, Inc. and Intel
VIRTUAL ENVIRONMENT: This Advanced Networking Workshop explores the next generation data center with two videos and an expert E-Guide.
Posted: 06 Jan 2012 | Premiered: 06 Jan 2012

Dell, Inc. and Intel

The role of the network in the private cloud
sponsored by Dell, Inc. and Intel
WEBCAST: Watch this webcast to examine the need for more VLANs, the use of software-defined networking in multi-tenant cloud networks, and how performance and compliance must be addressed in the private cloud.
Posted: 05 Jan 2012 | Premiered: 05 Jan 2012

Dell, Inc. and Intel

Why Physical Networks Don't Cut It for the Private Cloud
sponsored by Dell, Inc. and Intel
EGUIDE: This expert guide discusses why physical networks don’t cut it for the cloud, addressing multi-tenancy in the private cloud and the cloud VLAN challenge.
Posted: 22 Dec 2011 | Published: 22 Dec 2011

Dell, Inc. and Intel

Simplifying networks in virtualized environments with Intel technology
sponsored by Dell, Inc. and Intel
WHITE PAPER: Advances in 10 Gigabit Ethernet technology have IT organizations pondering how they can simplify their virtualized environments.
Posted: 30 Nov 2011 | Published: 30 Nov 2011

Dell, Inc. and Intel

Simplifying Network Management with Enterasys: Reducing the complexity and cost of network management with OneFabric™
sponsored by Enterasys
WHITE PAPER: Traditional network architectures often cannot effectively support the business because they fail to meet the requirements needed. Review traditional architectures used in businesses today and see a new unified architecture that can bring existing IT fabrics into a single end-to-end network fabric.
Posted: 23 Nov 2011 | Published: 23 Nov 2011

Enterasys

Integrating Physical and Virtual Networking – Virtualized Server Connect to the Data Center Fabric
sponsored by Enterasys
WHITE PAPER: Server virtualization has affected all facets of the data center – from servers to storage to the network. While the promise is a reduced capital investment, higher agility and lower operational expenses, the success of server virtualization depends on the integration of both the physical and the virtual network. This has its own set of challenges.
Posted: 22 Nov 2011 | Published: 22 Nov 2011

Enterasys

E-Guide: Virtualization implementation and management: A network perspective
sponsored by Dell and VMware
EGUIDE: Virtualization has become a reality in the networking world. It is vital for professionals to understand how server virtualization and networks affect each other.
Posted: 21 Nov 2011 | Published: 21 Nov 2011

Dell and VMware

Miercom Lab Testing Summary Report: Plug and Play Switches
sponsored by Avaya
WHITE PAPER: This whitepaper is a lab testing summary report of the plug and play features and easy of configuration for the ERS 4548GT-PWR Edge switch.
Posted: 01 Nov 2011 | Published: 01 Nov 2011

Avaya

Virtualizing Your Cisco Unified Communications with Cisco UCS
sponsored by Global Knowledge
WHITE PAPER: This white paper highlights the advantages of virtualizing your Cisco Unified Communications using the Cisco Unified Computing System (UCS).
Posted: 15 Apr 2011 | Published: 15 Apr 2011

Global Knowledge

E-Guide: Business-Ready Configuration for Microsoft Hyper-V R2 on Dell PowerEdge M-Series Servers with EqualLogic Storage
sponsored by Dell and Microsoft
EGUIDE: Business-Ready Configurations for Virtualization are a reference architecture family of products designed to aid in the ordering, deployment, and maintenance of a virtualization infrastructure. These architectures are designed to meet specific customer needs. Read on to learn more.
Posted: 08 Apr 2011 | Published: 08 Apr 2011

Dell and Microsoft

What's New in VMware vSphere™ 4: Virtual Networking
sponsored by Global Knowledge
WHITE PAPER: VMware vSphere™ introduces a number of new features and capabilities to virtual networking under VMware® vNetwork. vNetwork is the new name to describe the collection of networking technologies for optimally integrating networking and I/O functionality into vSphere.
Posted: 21 Sep 2009 | Published: 21 Sep 2009

Global Knowledge

Dell Networking Solutions Guide for Microsoft Hyper-V
sponsored by Dell and Microsoft
WHITE PAPER: This solutions guide details the four available networking configurations, and the advantages and disadvantages of each with an emphasis on typical Dell system configuration and the hardware offerings.
Posted: 11 Dec 2008 | Published: 11 Dec 2008

Dell and Microsoft
14 Matches
 
VLAN DEFINITION (continued): …  ways. If a network switch is set for autotrunking, the attacker turns it into a switch that appears as if it has a constant need to trunk (that is, to access all the VLANs allowed on the trunk port). In Cisco's Dynamic Trunking Protocol (DTP), the susceptibility of a system to this form of VLAN hopping can be minimized by turning off the autotrunking feature (DTP off) on all switches that do not need to trunk. In the second form of VLAN hopping, the hacker transmits data through one switch to another by sending frames with two 802.1Q tags, one for the attacking switch and the other for the victim … 
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