Enterasys Networks 9034385 manual Component Requirements for Authorization

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Model 2: End-System Authorization

a password in the registration web page. This sponsor username and password can be validated against an existing database on the network to authenticate the sponsorʹs identity. Sponsors may be allowed to securely access an administrative web page where they can delete, add, and modify registered end‐systems on the network that they have sponsored. With sponsored registration enabled, IT operations can hold trusted users accountable for guests brought on the enterprise network, while controlling access for only appropriate guests.

Post-Connect NAC integration with NetSight Automated Security Manager

NetSight Automated Security Manager (ASM), a software application that is part of the NetSight Suite, has the capability to search the infrastructure and locate the switch port of connection, based on the receipt of a security event for a particular IP address. ASM responds to this event by disabling the port or assigning a VLAN (such as the quarantine VLAN) to the port. In response to a real‐time security threat detected on the network, ASM can be configured to notify NAC Manager on this event, dynamically quarantining the MAC address. This effectively restricts the quarantined end‐system from accessing the network from any location, enterprise‐wide. If ASM reverses the quarantine action, it notifies NAC Manager, and the quarantine is automatically removed and the end‐system is dynamically re‐ admitted access to network resources. Therefore, the deployment of Enterasys NAC further increases the security posture of the network by integrating with the reactive threat response capabilities of ASM, in addition to controlling access and authorizing connecting devices.

Required and Optional Components

This section summarizes the required and optional components for Model 2.

.

Table 2-2 Component Requirements for Authorization

Component

Authorization

 

 

NAC Appliance

Required

 

 

NetSight NAC Manager

Required

 

 

NetSight Console

Required

 

 

Assessment

Optional

 

 

RADIUS Server

Optional

 

 

NetSight Policy Manager

Optional

 

 

NetSight Inventory Manager

Optional

 

 

The NAC Gateway and NAC Controller are the NAC appliances used to implement the out‐of‐ band and inline network access control functionality on the network.

NetSight NAC Manager is the software application used to centrally manage the NAC appliances deployed on the network.

NetSight Console is the software application used to monitor the health and status of infrastructure devices in the network, including switches, routers, and Enterasys NAC appliances (NAC Gateways and NAC Controllers).

Assessment functionality is optional because in this deployment model, end‐systems are not being assessed for security posture compliance when connecting to the network.

Enterasys NAC Design Guide 2-7

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Contents Enterasys Page Page Page Contents Design Planning Design ProceduresUse Scenarios Tables FiguresPage Related Documents Intended AudienceSupport@enterasys.com Getting HelpAuthentication NAC Solution OverviewKey Functionality DetectionDeployment Models AuthorizationAssessment RemediationModel 1 End-system Detection and Tracking Model 2 End-System AuthorizationModel 3 End-System Authorization with Assessment NAC Appliance NAC Solution ComponentsNAC Controller Appliance NAC Gateway ApplianceNAC Controller is available in two models NAC Gateway NAC Controller Appliance ComparisonDisadvantage Advantage NetSight NAC Manager NetSight ManagementAssessment Server SummaryRadius Server Summary Summary Overview Out-of-Band NAC Model 1 End-System Detection and TrackingImplementation End-System and User Tracking Features and ValueInline NAC Layer Required and Optional Components Model 2 End-System Authorization Inline NAC Device-Based Authorization Location-Based AuthorizationMAC Registration User-Based AuthorizationComponent Requirements for Authorization Model 3 End-System Authorization with Assessment Inline NAC Extensive Security Posture Compliance Verification Diverse Security Posture Compliance Verification Component Requirements for Authorization with Assessment Implementation Self-Service Remediation Required and Optional Components Enterasys NAC Deployment Models Value Use Scenarios Scenario 1 Intelligent Wired Access EdgeNAC Functions Policy-Enabled EdgeVLAN=Production RFC 3580 Capable EdgeScenario 1 Implementation Thin Wireless Edge Scenario 2 Intelligent Wireless Access EdgeRemediation Web User Laptop Thick Wireless Edge Scenario 2 Implementation Scenario 3 Non-intelligent Access Edge Wired and Wireless Layer 2 Wired LAN Scenario 3 Implementation Scenario 4 VPN Remote AccessScenario 4 Implementation VPN Remote Access EnterasysUse Scenario Summaries Summary and Appliance Requirements VPN remote access Identify the NAC Deployment Model Design PlanningIdentify the Intelligent Edge of the Network Survey the NetworkNetwork with Intelligent Edge Case #1 No authentication method is deployed on the network Evaluate Policy/VLAN and Authentication ConfigurationOverview of Supported Authentication Methods Case #2 Authentication methods are deployed on the networkSupport for Multiple End-System Connection Support of Multiple Authentication MethodsEnd-System Capabilities Authentication Considerations Authentication Support on Enterasys DevicesIdentify the Strategic Point for End-System Authorization Wireless LAN Wired LANThick Wireless Deployments Identify Network Connection MethodsSite-to-Site VPN Remote Access WANThin Wireless Deployments Identify Inline or Out-of-band NAC Deployment Remote Access VPNSummary Identify Required NetSight Applications Procedures for Out-of-Band and Inline NACDefine Network Security Domains Security Domain NAC ConfigurationsNAC Configuration Authorization NAC Configuration for a Security Domain Procedures for Out-of-Band and Inline NAC To the network Procedures for Out-of-Band and Inline NAC Procedures for Out-of-Band and Inline NAC Security Domain Configuration Guidelines for Assessment MAC Overrides Identify Required MAC and User OverridesMAC and User Override Configuration Procedures for Out-of-Band and Inline NAC Procedures for Out-of-Band and Inline NAC User Overrides Determine the Number of Assessment Servers Assessment Design ProceduresDetermine Assessment Server Location Identify Assessment Server ConfigurationIdentify Network Authentication Configuration Out-of-Band NAC Design ProceduresDetermine the Number of NAC Gateways NAC Gateway Redundancy Determine NAC Gateway Location Determine End-System Mobility Restrictions Identify Backend Radius Server InteractionDefine NAC Access Policies Vlan ConfigurationPolicy Role Configuration Assessment Policy and Quarantine Policy Configuration Failsafe Policy and Accept Policy ConfigurationAssessment Policy Policy Role Configuration in NetSight Policy ManagerQuarantine Policy Service for the Assessing RoleUnregistered Policy Inline NAC Design ProceduresDetermine NAC Controller Location Inline NAC Design Procedures Determine the Number of NAC Controllers Layer 2 NAC Controller Redundancy Define Policy Configuration NAC Deployment With NetSight ASM Additional ConsiderationsNAC Deployment With an Intrusion Detection System IDS Additional Considerations Design Procedures
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