In response to the request, the authenticated user is removed from the connection status tables. If the client logout request feature is not enabled, or the user does not specifically request logout, the connection status remains authenticated until Captive Portal deauthenticates (session timeout, idle time, etc.). In order for user logout to function properly, the client browser must be configured such that JavaScript is enabled and popup windows are allowed.

Web Page Customization

Captive Portal provides a web interface to create and customize a specific web page for each Captive Portal configuration. This is accomplished by providing text input components that accept Unicode literal characters.

NOTE: Customization of Captive Portal web pages is accomplished using the Web UI and is not available by using the CLI.

Figure 5-6. PowerConnect 6200 Series Switch with TACACS+

The administrator can download and configure image files for branding purposes. Each image must first be copied onto the switch; Captive Portal provides a HTTP file browser component for this purpose. GIF (Graphics Interchange Format) and/or JPEG (Joint Photographic Experts Group) file types are supported. Once an image file is copied to the switch it can be selected from a drop-down list and associated with a specific web page configuration.

The authentication server generates user verification pages upon receipt of a specific URL request. The URL provides an interface identifier that links to the data in the Captive Portal configuration. The authentication server reads the associated data to construct and serve the appropriate web page.

Captive Portal Status

Captive Portal status is available primarily through 3 tables:

Client Connections

Authentication Failures

Activity Log

Client Connections

Client entries are added to and deleted from this table as each user becomes authenticated or de- authenticated using Captive Portal. A trap is sent for every addition. Each table entry identifies the authenticated user, the connection interface, and the captive portal instance for which the client is authenticated and the current session time.

The administrator may issue a command to de-authenticate a connected client. As a result, the client session is terminated and the associated entry is removed from the database. This does not prevent the user from obtaining a subsequent captive portal connection. The administrator must remove the user entry from the local user database (or RADIUS) configuration to prevent future connections.

The size of the table has a limit of 1024 entries. If the list becomes full, new table entries are rejected and a trap is sent for every rejected client.

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Device Security

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Dell 6200 SERIES manual Captive Portal Status, Client Connections, 128

6200 SERIES specifications

The Dell 6200 Series is a notable line of workstations designed for professionals seeking powerful computing solutions in fields such as engineering, architecture, and design. With its robust architecture and advanced technology, this series stands out for its ability to handle demanding applications while offering reliability and performance.

One of the key features of the Dell 6200 Series is its powerful processing capabilities. It typically includes Intel Xeon processors, which provide multiple cores to manage multitasking efficiently. This allows users to run complex simulations or render high-resolution graphics without experiencing lag or slowdown. The processors are designed for optimal thermal management, allowing for sustained performance during extended work sessions.

Another significant aspect of the Dell 6200 Series is its graphics capabilities. These workstations often come equipped with NVIDIA or AMD professional-grade graphics cards, ensuring that they are equipped to handle graphically intensive tasks, such as 3D modeling and video editing. The support for advanced rendering technologies allows professionals to work with high-fidelity visuals and complex datasets with ease.

In terms of expandability, the Dell 6200 Series is designed with flexibility in mind. Users can customize their workstations with a range of configurations, including varied RAM capacities and storage options. This flexibility ensures that the workstation can be tailored to meet the specific requirements of different workloads. The incorporation of Solid State Drives (SSDs) enhances data access speeds, significantly improving boot times and overall system responsiveness.

Additionally, the Dell 6200 Series includes comprehensive connectivity options to facilitate integration with various peripherals and networks. With multiple USB ports, Ethernet ports, and support for multiple display outputs, users can connect to external devices easily, promoting an efficient workflow.

Security features are also a priority in this series. The workstations typically include advanced security measures, such as TPM (Trusted Platform Module) technology, which helps protect sensitive data through hardware encryption and secure storage.

Overall, the Dell 6200 Series delivers a blend of power, flexibility, and security that makes it an excellent choice for professionals in need of a dependable workstation. With its advanced technologies and ample expansion options, users can feel confident that their equipment can handle both current and future demands, making it a smart investment for any professional environment.