The LAN has emerged as a security risk, subject to insider misuse as well as external attacks. Threats can arise from rogue hosts on wireless, guests plugging into open ports in a conference room, ...

With Wireless LANs becoming mainstream, organizations want to tightly integrate Wireless LANs with wired LANs. Network managers are reluctant or unwilling to deploy Wireless LANs unless those LANs ...

Access-control lists, originally designed for routers to deny or admit packets entering a network from a WAN, have drawbacks in controlling a diverse group of users accessing LANs. ACLs have no ...

This is the second article in our spotlight on the evolution of the SGi/Gi-LAN, a core element in today’s mobile networks. Faced with an explosion of mobile devices and a shift in traffic patterns ...

“Traditional LAN designs are constrained by a PC-centric world, thereby placing intelligent systems at risk of significant cyber threats and poor environmental stewardship, as well as negatively ...

Wireless networking is terrific. I have the freedom to work on the Internet anywhere around my office or even outside on my porch. I do not worry about drilling holes in my walls or fishing wires.

In my recently published “Deciphering wiring” post, I discussed (among other things) the multiple spans of Ethernet cable that shuttle LAN packets between various areas of the house and the downstairs ...

Yet IT executives are still distrustful of wireless LANs because of perceived security nightmares such as wireless denial-of-service attacks and network breaches. “They are scared,” says Nick Selby, ...

The Local Area Network (LAN) we know today starts simply, with a switch connecting a computer to the network. But that inevitably gets more complex as you add routers and the occasional firewall to ...

Most enterprise LAN switch vendors such as Alcatel, Allied Telesyn, Avaya, 3Com, Cisco, Dell, Enterasys, Extreme, Foundry, HP and Nortel include intelligent features such as Layer 3 and 4 access ...