Enterasys Networks 9034385 manual Model 1 End-system Detection and Tracking

NAC Solution Overview

Model 1: End-system Detection and Tracking

This NAC deployment model implements the detection piece of NAC functionality. It supports the ability to track users and end‐systems over time by identifying where they are currently connected to the network and where they have connected to the network at any given time in the past. This information is useful for compliance and auditing purposes, as well as other management operations that require complete visibility into the current and historical connections of end‐ systems and users.

Model 2: End-System Authorization

This NAC deployment model implements the detection, authentication, and authorization NAC functionalities, to control access to network resources based on user and end‐system identity and location. The model supports MAC address or guest registration, where new end‐systems are forced to provide a valid user identity in a web page form before being allowed access to the network. Following successful registration, end‐systems are granted measured access, without requiring the intervention of network operations.

Model 3: End-System Authorization with Assessment

This NAC deployment model implements the detection, authentication, assessment, and authorization NAC functionalities, to control access to network resources based on the security posture of a connecting end‐system, as well as user and device identity and location. End‐systems that fail assessment can be dynamically quarantined with restrictive network access to mitigate the propagation of security threats on the network, while compliant end‐systems are permitted onto the network with a measured level of access.

Alternatively, specific end‐systems and users can be assessed upon network connection and be permitted network access regardless of the assessment results. This approach allows an IT administrator to have visibility into the configuration of end devices on the network without impacting their network connectivity during or after assessment. This approach is usually implemented during the initial rollout of the NAC solution for baselining purposes.

This NAC deployment model requires the use of either integrated assessment server functionality or the ability to connect to external assessment services, in order to execute the end‐system vulnerability assessment.

Model 4: End-System Authorization with Assessment and Remediation

This NAC deployment model implements the detection, authentication, assessment, authorization, and remediation NAC functionalities, providing for the quarantine and remediation of noncompliant devices. Assisted remediation uses web‐based notification to dynamically inform quarantined end‐systems of security compliance violations, and allow end users to safely remediate their quarantined end‐system without impacting IT operations.

Enterasys NAC Design Guide 1-3