Enterasys Networks 9034385 manual Additional Considerations, NAC Deployment With NetSight ASM

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Additional Considerations

assessment servers to reach the end‐system while it is being assessed, regardless of whether the Assessing policy, Enterprise User policy, or any other policy role is utilized for assessment.

The Quarantine Policy is used to restrict network access to end‐systems that have failed assessment. The Quarantine policy role is configured by default on the NAC Controller to be used as the Quarantine Policy in NAC Manager. This policy is restrictive, allowing DNS and DHCP, and redirecting web traffic to serve back a web page stating the end‐system has been restricted access because it is deemed noncompliant. All other types of traffic are discarded. If it is desired to open network access when an end‐system fails the assessment, the use of the Quarantine Policy can be disabled in the NAC Configuration or the Enterprise User policy role can be selected as the Quarantine Policy.

Unregistered Policy

If MAC (network) registration is to be configured on Layer 2 NAC Controllers, the Unregistered policy role configured by default on the NAC Controller can be used for the Accept Policy of unregistered devices. This policy is restrictive, allowing DNS and DHCP, and redirecting web traffic to serve back a registration web page stating the end‐system has been restricted access because it has not yet registered. All other types of traffic are discarded.

Additional Considerations

This section presents additional design considerations for both inline and out‐of‐band NAC deployments.

NAC Deployment With an Intrusion Detection System (IDS)

NAC deployments that implement end‐system assessment complement networking environments with IDS technologies that detect real‐time security events on the network. While end‐system assessment determines the security posture of connecting devices and mitigates threats posed by vulnerable end‐systems, it does not determine the end userʹs intentions, whether malicious or benevolent. Therefore, IDS technologies can monitor how an end‐system utilizes network resources after NAC has validated the security posture compliance of the end‐system.

However, end‐system assessments utilized in NAC may be classified by an IDS (depending on its configuration) as an attack. Therefore, if the traffic from the assessment server traverses a network link that is monitored by an IDS sensor, the IDS must be configured to not generate security events for traffic sourced from the assessment server’s IP address. The same applies for IPS systems.

NAC Deployment With NetSight ASM

NetSight ASM can be configured to notify the locally installed NAC Manager to dynamically configure a MAC override for a threat MAC address on the network. When a security threat is detected on the network, either through Enterasys Dragon IDS or a third‐party device, and the security threat is communicated to NetSight ASM for an automated response, ASM can then quarantine the source of the attack at the port of connection using policy, and also communicate this quarantine action to NAC. If the end‐system sourcing the security threat moves to a different port on the network, the end‐system will remain quarantined, due to a dynamically configured MAC override, to protect the network from the possibility of future attacks. Therefore, the deployment of NAC not only proactively protects the network from security threats posed by vulnerable end‐systems, but it also empowers the networkʹs dynamic response characteristics to real‐time threats detected from end‐systems.

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Contents Enterasys Page Page Page Contents Use Scenarios Design ProceduresDesign Planning Tables FiguresPage Related Documents Intended AudienceSupport@enterasys.com Getting HelpAuthentication NAC Solution OverviewKey Functionality DetectionDeployment Models AuthorizationAssessment RemediationModel 3 End-System Authorization with Assessment Model 2 End-System AuthorizationModel 1 End-system Detection and Tracking 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 ManagementRadius Server SummaryAssessment Server Summary Summary Overview Implementation Model 1 End-System Detection and TrackingOut-of-Band NAC Inline NAC Layer Features and ValueEnd-System and User Tracking Required and Optional Components Model 2 End-System AuthorizationInline 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 networkEnd-System Capabilities Support of Multiple Authentication MethodsSupport for Multiple End-System Connection Authentication Considerations Authentication Support on Enterasys DevicesIdentify the Strategic Point for End-System Authorization Wireless LAN Wired LANThick Wireless Deployments Identify Network Connection MethodsThin Wireless Deployments Remote Access WANSite-to-Site VPN 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 InteractionPolicy Role Configuration Vlan ConfigurationDefine NAC Access Policies 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 RoleDetermine NAC Controller Location Inline NAC Design ProceduresUnregistered Policy Inline NAC Design Procedures Determine the Number of NAC Controllers Layer 2 NAC Controller Redundancy Define Policy Configuration NAC Deployment With an Intrusion Detection System IDS Additional ConsiderationsNAC Deployment With NetSight ASM Additional Considerations Design Procedures

9034385 specifications

Enterasys Networks 9034385 is a powerful networking component designed to enhance enterprise-level connectivity and ensure robust network management capabilities. This device offers a wide range of features that cater to the demanding requirements of modern businesses, focusing on performance, reliability, and security.

One of the main features of the Enterasys Networks 9034385 is its advanced Layer 2 and Layer 3 switching capabilities, which enable efficient data processing and robust network performance. With support for various VLAN configurations, the device allows organizations to segment their networks effectively, leading to improved security and better traffic management.

Another critical aspect of the 9034385 is its support for high-speed connectivity. The device features multiple gigabit Ethernet ports, providing sufficient bandwidth for data-intensive applications commonly used in enterprise environments. The high-speed connections ensure that users can access applications and data quickly and reliably, minimizing latency issues that can affect productivity.

In terms of management, Enterasys Networks has equipped the 9034385 with advanced monitoring and diagnostic tools. These capabilities allow network administrators to track performance metrics, identify potential issues proactively, and make informed decisions about network resource allocation. The inclusion of SNMP (Simple Network Management Protocol) facilitates seamless integration with network management systems, providing comprehensive oversight of network health and performance.

Security is a paramount consideration for the 9034385, which incorporates advanced security protocols to protect sensitive data. Features such as port security, DHCP snooping, and dynamic ARP inspection help safeguard the network against unauthorized access and cyber threats. Furthermore, the device supports authentication mechanisms like 802.1X, ensuring that only authorized users and devices can connect to the network.

The Enterasys Networks 9034385 also stands out due to its seamless integration with cloud-based services and support for virtualization technologies. This compatibility enables organizations to adopt flexible architectures and manage their resources more efficiently. Additionally, the device is designed with scalability in mind, allowing businesses to expand their networks without significant hardware changes or disruptions.

Overall, the Enterasys Networks 9034385 is a versatile and powerful networking solution ideal for enterprises looking to enhance their network infrastructure while ensuring performance, security, and ease of management. The combination of advanced features and technologies makes it a valuable asset for businesses of all sizes striving for efficient and reliable connectivity.
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