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VLAN
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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, and 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
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| Recent Vendor Reports on VLAN |
Strategic Planning for Network and Systems Management
sponsored by CA
WHITE PAPER: Posted: 13 May 2008 | Published: 13 May 2008
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Nemertes Research: The Center Is Everywhere
sponsored by SonicWALL
WHITE PAPER: Posted: 28 Apr 2008 | Published: 01 Apr 2008
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Network and Voice Management for Evolving Business Environments
sponsored by CA
WHITE PAPER: Posted: 28 Apr 2008 | Published: 28 Apr 2008
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Ease ERP Deployment with On-Demand Utility Computing
sponsored by USi, an AT&T Company
WHITE PAPER: Posted: 21 Feb 2008 | Published: 01 Mar 2007
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Eliminating Security Trade-Offs with Cross-Platform Server Isolation
sponsored by Apani
WHITE PAPER: Posted: 18 Feb 2008 | Published: 01 Feb 2008
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VLAN DEFINITION (continued):
hopping attack can occur in either of two 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
VLAN definition sponsored by SearchSecurity.com, powered by WhatIs.com an online computer dictionary
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