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Access Control

In: Business and Management

Submitted By ooohboy13
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If you’d like to implement Network Access Control, no matter what architecture you select, you definitely want to start by building a small interoperability lab. In this white paper, we’ll give you some advice on what to think about before you get started, and outline what resources you’ll need to have in place in order to begin testing. Any NAC deployment must start by answering three critical questions: 1) What is my access control policy? 2) What are the access methods (such as LAN, wireless, or VPN) I want to protect? 3) How will this integrate with my existing infrastructure? Once you answer these questions, you can begin to gather test lab resources, such as servers (for policy definition points), laptops or desktops (for network access requestors), and switches, access points, and VPN servers (for policy enforcement points).

Getting Started with Network Access Control

What is my access control policy?
NAC is a generic concept that deals with defining access controls based on user authentication, end-point security assessment, and network environmental information. That’s too big for most network managers to bite off in a single chunk, so many NAC deployments hone in on a subset of these goals and expand over time. You’d be wise to do the same---trying to do too much too early in the lifecycle of this emerging group of products will lead to undue frustration and unnecessary complexity. To start, you should define a simple network access control policy. It is important to define your access control policy first, because that will frame the rest of your testing and deployment. You can put it in any format you want, but most network managers will be most comfortable with something that looks like a table. The following table might give you an idea of how to start: User Identification Auth, Group=STAFF Auth, Group=STAFF Auth, Group=GUEST...

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