vlan Resources on ZDNet

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VLAN: See virtual LAN.; Full VLAN Definition >>

ZDNet Resources

"We've toasted so many of these (VoIP) networks...: Marty Graham of Wired.com's Threat Level blog writes about an interview he had with VoIP open source security tool VoIP Hopper's co-developer Jason Ostrom. Apparently Ostrom and business partner John Kindervag used the VoIP Hopper tool to do some penetration testing of supposedly...; Tags: Network, VLAN, Graham, Telephony, VOIP, Telecommunications, Networking, Russell Shaw; Blog posts 2007-10-21
Network Warrior: vlans: Virtual LANs, or VLANs, are virtual separations within a switch that provide distinct logical LANs that each behaves as if they were configured on a separate physical switch. Before the introduction of VLANs, one switch could serve only one LAN. VLANs enabled a single switch to serve multiple LANs. Assuming...; Tags: Network, VLAN, LANs, Networking; Book chapters 2007-06-01
The Case for Virtual Local Area Networks (vlans): The virtual LAN is a recent addition to the history of Ethernet. The VLAN was introduced to solve a number of networking issues. In this whitepaper you will learn about the evolution of Ethernet, the reasons VLANs were introduced, and the ways that VLANs can be used. You will also...; Tags: VLAN, LANs, Networking; White papers 2007-05-10
802.3af Power Over Ethernet on the cheap: 802.3af Power Over Ethernet on the cheapBeg to differ (of course, what else would you expect?!)"[i]You can't do advanced functions like VLAN separation on a cheap switch like this to separate your Voice devices from your data network[/i]"[url=http://www.geek-pages.com/articles/latest/dd-wrt_-_setting_up_a_separate/isolated_vlan_on_port_4_with_dhcp.html]fyi[/i], you can do VLAN on a cheap ($59) Linksys WRT54GL.But this whole...; Tags: LANs, VLAN, Power over Ethernet, IEEE 802.3af; Discussion threads 2007-02-02
Understanding and Configuring vlan Trunk Protocol (VTP): VLAN Trunk Protocol VTP reduces administration in a switched network. When a user configures a new VLAN on one VTP server, the VLAN is distributed through all switches in the domain. This reduces the need to configure the same VLAN everywhere. VTP is a Cisco-proprietary protocol that is available on...; Tags: Cisco Systems Inc., VLAN, VLAN Trunk Protocol, LANs, Networking; White papers 2007-01-04

Learn to build a separate guest and internal WLAN on Cisco 871W: The Cisco 871W router is a relatively low cost device ($500 to $700 depending on licensing options) that can perform a wide range of duties described in this earlier blog. Anyone can purchase one or two of these routers for a lab in their IT department to practice with...; Tags: VLAN, Cisco 871W; Blog posts 2006-08-04
Cisco 871W Wireless Router does it all: Cisco 871W Wireless Router does it allA bargain(Thick Russian accent...)I get you Cisco 871W cheap. Five Hundred American Dollahs. VLAN. Iz Nice. Dah?!Doh! There goes the household budget! ;)Sounds nice George...but why should my employer buy this piece of equipment for me, which I'm using for private things...; Tags: LANs, Routers & switches, NETWORKING, wireless router, SSH, VLAN, router, Cisco 871W, Cisco Systems Inc.; Discussion threads 2006-07-27
Cisco 871W Wireless Router does it all: [Update: Part one of actual tutorial has been posted.]I've been testing and reviewing a Cisco 871W Wireless Router for the last few weeks and I'm using it as my primary router at home yes this is the one I hooked up to my generator during the power outage. The...; Tags: router, Cisco 871W, Cisco Systems Inc.; Blog posts 2006-07-27
Enabling VMware ESX Server vlan Network Configurations for the Dell PowerEdge 1855 Blade Server: Virtualization allows for the creation of multiple virtual machines VMs that can run simultaneously on a single physical server. These VMs can communicate among each other and with other physical systems through virtual switches. Virtual switches are software entities that provide the functionality of a physical Ethernet switch. Coupled with...; Tags: Dell Computer Corp., Blade Server, Virtualization, Network Configuration, VMware Inc., VMWare ESX Server, VLAN, Dell PowerEdge, Virtual Machine, VMWare ESX, LANs, Servers, Networking, Hardware; White papers 2006-02-01
Mitigate Layer 2 attacks against vlans: This sample chapter, taken from CCSP SNRS Exam Certification Guide (CCSP Self-Study), examines Layer 2 attacks, mitigations, best practices, and functionality. Learn about the most common types of Layer 2 attacks and mitigation strategies. This information, including practice questions, will help you prepare for the CCSP SNRS...; Tags: Layer 2, Cisco Systems Inc., VLAN, Attack; Book chapters 2006-01-11
HP ProLiant Networking - Configure Virtual Local Area Connections in Microsoft Windows Environments: The HP Network Configuration Utility is a networking product designed and developed by HP. The NCU allows ProLiant server administrators to configure HP network adapters and HP network teams. VLANs allow a single network to be broken into multiple, virtual networks using the same hardware. 802.1Q VLAN tagging is an...; Tags: Hewlett-Packard Co., Network, Environment, Microsoft Windows, Microsoft Corp., VLAN, HP Compaq ProLiant, HP Network Configuration Utility, NCU, 802.1Q VLAN Tagging, LANs, Networking; White papers 2005-09-01
Improve network performance with virtual LANs (vlans): This sample chapter, taken from Cisco Press' CCNA Self-Study: Interconnecting Cisco Network Devices, 2nd Edition, shows you how virtual LANs VLANs improve network performance by controlling broadcasts. The chapter explains the following:How to identify and operate a VLANHow to configure a VLAN to improve network performanceThe switch's role in VLAN...; Tags: Chapter, Network, Network Device, Cisco Systems Inc., VLAN, LANs, Networking; Book chapters 2005-06-22
Cisco introduces all-in-one low-cost products: Cisco is releasing a new series of low-cost products that are a hybrid of switches, routers and wireless access points. The new Cisco 870 series integrated services router merges a Cisco IOS Internetworking Operating System router, an IOS switch, and an Aironet based IOS access point into a...; Tags: Cisco IOS, Cisco Systems Inc.; Blog posts 2005-05-20
VMware ESX Server 802.1Q - vlan Solutions: Since the release of ESX Server 2.1, ESX Server supports VLAN (IEEE 802.1Q) Trunking with ESX Server virtual switches. Using VLANs customers may enhance security and leverage their existing network infrastructures with ESX Server. This white paper provides an overview of VLAN concepts and benefits and illustrates three possible ESX...; Tags: IEEE 802.1Q, Server, VMware Inc., VMWare ESX Server, VLAN, VMWare ESX, LANs, Networking; White papers 2004-12-06
Deploying Windows Server 2003 Internet Authentication Service (IAS) With Virtual Local Area Networks (vlans): This white paper describes how to configure remote access policy in Internet Authentication Service IAS for use with virtual local area networks VLANs. When you configure the profile of an IAS remote access policy for use with VLANs, you must configure the attributes Tunnel-Medium-Type, Tunnel-Pvt-Group-ID, Tunnel-Type, and Tunnel-Tag. VLANs allow...; Tags: Microsoft Windows Server, Microsoft Windows, VLAN, Authentication Service, Internet Authentication Service, Microsoft Windows Server 2003, LANs, Remote Access, Networking; White papers 2004-06-01
vlan Security in the LAN and MAN Environment: VLANs are no-longer confined to LAN environments and are becoming more widespread in their use. Unfortunately VLAN security is not always considered in their implementation. This paper discusses security issues, and their risks, caused by both mis-configuration and hardware flaws for VLANs in both the LAN and MAN environment. Since...; Tags: Metropolitan Area Network, VLAN, LANs, Networking; White papers 2003-04-27
vlan Awareness in Nokia Security Appliances: VLAN awareness has been added to Nokia security appliances with the release of IPSO 3.5. VLAN aware capabilities are available on all supported Ethernet interfaces. With IPSO providing the ability to receive and generate VLAN packets, Gigabit Ethernet interfaces can be used to greatly reduce the amount of cables required...; Tags: Security, Nokia Corp., VLAN, VLAN Awareness, LANs, Networking; White papers 2002-07-01
Cisco IOS vlan Services: In LAN workgroup environments, the ISL protocol delivers VLAN functionality with full switching performance. Where enterprise-wide virtual networking is required, multivendor interoperability resulting from standards-based implementation, such as that provided by Cisco Systems, is key. Cisco supports VLANs over ATM via LAN Emulation and, in large LAN and serial link...; Tags: Cisco IOS, Environment, Cisco Systems Inc., VLAN, LANs, Networking; White papers
Virtual LAN Communications: The first section of this document briefly discusses the importance of each one of these components within VLAN architectures. The second section reviews the benefits of VLANs and their applicability within workgroups and across the enterprise backbone. VLANs are more than simply a shared hub, routing, switching, or network management...; Tags: Section, VLAN, LANs, Networking; White papers
White Paper: vlan Trunk Protocol: VLAN Trunk Protocol VTP reduces administration in switched network. When you configure a new VLAN on one VTP server, the VLAN is distributed through all switches in the domain. This reduces the need of configuring the same VLAN everywhere.; Tags: VLAN, VLAN Trunk Protocol, LANs, Networking; White papers