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Integrated wired and wireless LAN security? Not so fast
This article is part of the Network Evolution issue of April 2011 Vol. 2, No. 2
Many vendors preach integrated wired and wireless LAN security solutions, but some network security pros, like Ruairi Brennan, IT security analyst at The Electricity Supply Board (ESB) of Ireland, don't see the point. After all, isolating wired and wireless networks keeps vulnerabilities that are unique to the Wi-Fi network away from the wired network, says Brennan. The ESB's wireless LAN serves between 8,000 and 10,000 users with 60 Aruba Networks access points (APs). It was built to provide wireless access in conference rooms and other areas that the existing wired LAN didn't serve well. For security, the ESB turned to AirTight's SpectraGuard Enterprise Wireless IPS (a wireless intrusion prevention system product) and the SpectraGuard SAFE endpoint protection system. Deployed together, these products can stop “bridging” between wired and wireless networks. “It's a massive security risk if you have someone on the LAN simultaneously accessing an outside wireless access point,” Brennan said. “You could be bridging between a ...
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Features in this issue
As iPhone and iPad Wi-Fi clients proliferate in the enterprise, IT must troubleshoot Wi-Fi connection problems. Here's how to solve basic iPhone and iPad connection problems.
Tablets are taking the enterprise by storm, and tablet security is a major concern. Find out which mobile device security best practices you're already using can apply to tablets, and which you will need to revisit to keep tablets secure.
Wireless LAN integration means upgrading wired networks with new equipment and traffic prioritization to avoid bottlenecks between the networks and provide QoS for wireless multimedia applications, including WLAN voice and video.
Enterprise Wi-Fi coverage is a key aspect of communications infrastructure planning as dual-mode smartphones and mobile handsets replace desk phones. Successful Wi-Fi strategies must incorporate hybrid technologies like DAS, femtocell and FMC.
Combining wired and wireless LAN security solutions may be a plus for smaller companies, but larger enterprises fear security integration could result in vulnerabilities.
News in this issue
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To deploy unified network management, enterprises must look at the current network infrastructure, how users connect to the network and possibly embracing platforms like the cloud.