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when most information security professionals think about threats to

their networks, they think about the threat of attackers from the

outside. However, in recent years the number of computer security

incidents occurring from trusted users within a company has equaled

those occurring from external threats. The difference is, external

threats are fairly well understood and almost all companies utilize

tools and technology to protect against those threats. In contrast, the

threats from internal trusted employees or partners are often overlooked

and much more difficult to protect against.

Network Admission Control (NAC) is designed to prohibit or restrict

access to the secured internal network from devices with a diminished

security posture until they are patched or updated to meet the minimum

corporate security requirements. A fundamental component of the Cisco

Self-Defending Network Initiative, NAC enables you to enforce host patch

policies and to regulate network access permissions for noncompliant,

vulnerable systems.

Cisco Network Admission Control, Volume II, helps you understand how to

deploy the NAC Framework solution and ultimately build a self-defending

network. The book focuses on the key components that make up the NAC

Framework, showing how you can successfully deploy and troubleshoot each

component and the overall solution. Emphasis is placed on real-world

deployment scenarios, and the book walks you step by step through

individual component configurations. Along the way, the authors call out

best practices and tell you which mistakes to avoid. Component-level and

solution-level troubleshooting techniques are also presented. Three

full-deployment scenarios walk you through application of NAC in a small

business, medium-sized organization, and large enterprise.

- Effectively deploy the Cisco Trust Agent

- Configure Layer 2 IP and Layer 2 802.1x NAC on network access

devices

- Examine packet flow in a Cisco IOS NAD when NAC is enabled, and

configure Layer 3 NAC on the NAD

- Monitor remote access VPN tunnels

- Configure and troubleshoot NAC on the Cisco ASA and PIX security

appliances

- Install and configure Cisco Secure Access Control Server (ACS) for

NAC

- Install the Cisco Security Agent Manage-ment left and create agent

kits

- Add antivirus policy servers to ACS for external antivirus posture

validation

- Understand and apply audit servers to your NAC solution

- Use remediation servers to automatically patch end hosts to bring

them in compliance with your network policies

- Monitor the NAC solution using the Cisco Security Monitoring,

Analysis, and Response System (MARS)

This security book is part of the Cisco Press Networking Technology

Series. Security titles from Cisco Press help networking professionals

secure critical data and resources, prevent and mitigate network

attacks, and build end-to-end self-defending networks.

Book Info:

Published in 2006

Author Jazib Frahim

ISBN 1587052253 Size 10.60MB

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