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Network Access Control (NAC) is a classic example of industry hyperbole at work. In its genesis phase, NAC was really a concept and no more. Soon it was embraced as an end-to-end architecture flush with competing industry standards and grand visions. When this model proved too cumbersome, NAC became synonymous with network-based appliances that promised turnkey deployments. Finally, as NAC appliance vendors ran out of money, some industry pundits now question whether NAC was ever real or necessary. NAC success is also highly dependent on a technology infrastructure offering central management and flexibility around endpoint assessment, policy creation, changes, and enforcement. Symantec Network Access Control (SNAC) is one of few offerings able to address these challenges.
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