Scenario 4: VPN Remote Access

Scenario 3 Implementation

In the non‐intelligent access edge use scenario, the five NAC functions are implemented in the following manner:

1.Detection ‐ The userʹs end‐system connects to the network and transmits data traffic onto the network that traverses the NAC Controller. This traffic is sourced from a MAC address or IP address not previously seen by the controller.

2.Authentication ‐ One of two configurations may be implemented on the NAC Controller for end user authentication. Authentication can be disabled altogether, trusting that the downstream infrastructure devices authenticated the end‐system to the network (802.1X authentication to the wireless LAN, web‐based authentication to the wired LAN). Alternatively, MAC registration can be implemented, where an end user username and password and/or sponsor username and password must be validated against a backend LDAP‐compliant database before network access is permitted.

3.Assessment ‐ After the identity of the end‐system or end user is validated by authentication, the NAC Controller requests an assessment of the end‐system according to predefined security policy parameters. The assessment can be agent‐based or agent‐less, and is executed locally by the NAC Controllerʹs assessment functionality and/or remotely by a pool of assessment servers.

4.Authorization ‐ Once authentication and assessment are complete, the NAC Controller allocates the appropriate network resources to the end‐system based on authentication and/or assessment results. This is implemented locally on the NAC Controller by assigning a policy to traffic sourced from this end‐system. If authentication fails and/or the assessment results indicate a noncompliant end‐system, the NAC Controller can either deny the end‐system access to the network or quarantine the end‐system by specifying a particular policy on the NAC Controller.

5.Remediation ‐ When the quarantined end user opens a web browser to any web site, its traffic is dynamically redirected to a Remediation web page that describes the compliance violations and provides remediations steps for the user to execute in order to achieve compliance. After taking the appropriate remediation steps, the end user clicks on a button on the web page to reattempt network access, forcing the re‐assessment of the end‐system. At this point, the Enterasys NAC solution transitions the end‐system through the entire NAC cycle of detection, authentication, assessment, and authorization, re‐assessing the security posture of the end‐system to determine if the remediation techniques were successfully followed. If the end‐system is now compliant, the NAC Controller authorizes the end‐system with the appropriate access policy. If the end‐system is not compliant, the end‐system is restricted access to the network by assigning a policy to the end‐ system on the NAC Controller, and the process starts again.

Scenario 4: VPN Remote Access

In the VPN remote access use scenario, VPN concentrators act as a termination point for remote access VPN tunnels into the enterprise network.

For this use scenario, the NAC Controller appliance is deployed to authorize connecting end‐ systems on the network and implement network access control.

The following figure illustrates how the NAC Controller and the other Enterasys NAC components work together in a VPN remote access deployment to provide a comprehensive NAC solution.

Enterasys NAC Design Guide 3-11

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Enterasys Networks 9034385 manual Scenario 4 VPN Remote Access, Scenario 3 Implementation
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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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