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Known as network access control or network admission control (NAC, in both cases), network access protection or just LAN security, the varying designations have all been lumped into the NAC category.
Because of a rising call for better command of network risks, and because many organizations have begun to earmark dollars for future NAC products to address those needs, analysts say that the market has been awash in products that claim NAC functionality.
“Everybody and their brother is a NAC vendor,” says Zeus Kerravala, Yankee Group analyst, explaining that at one point even the SSL VPN vendors called themselves NAC. Though they've since stopped, the point remains.
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