Disappearing network perimeters highlight the need for identity-based security. Open networks, mobile systems, and unmanaged endpoints have become overwhelming obstacles—and cash drains. However, enforced identity-based policies within identity-blind systems have proven futile. Is there a solution? Yes. Make your policy enforcement layer identity-aware—build user identity knowledge directly into your network fabric.
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Good security used to mean perimeter firewalls and desktop anti-virus software. However, threats don’t come just from outside the company any more. That means security must go beyond the desktop and into the network infrastructure itself. You can stop security breaches at the source—with multimethod and microsecond threat detection—before any damage is done to your network and your business.
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The 802.1x protocol should be the obvious choice when implementing user-based authentication in enterprise networks. So why doesn’t everyone use it? Because it doesn’t give a complete solution for authentication and policy requirements, even when it’s integrated with a network access control (NAC) solution. But if you integrate 802.1x with a local area network (LAN) secure switch, you get a more complete secure solution.
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