AT-2900 Series Gigabit Ethernet Network Adapters Installation Guide

IPSec Offload

Traditionally, IPSec has been used for remote connections, but this feature has moved into the Local Area Network (LAN) to secure local network traffic against eavesdropping.

Vista’s Next Generation TCP/IP stack provides APIs for accessing brackets to allow advanced granularity to filter both inbound and outbound traffic.This was not possible with Microsoft’s XP Operating system. In addition, Vista’s security management now closely ties the firewall and IPSec features together by using a snap-in called Windows Firewall with Advanced Security. The onboard encryption engine on an AT-2900 Series adapter off-loads this task to the network controller instead of the host CPU, thereby freeing the host CPU for other important tasks. The off- loading feature is unique in the industry and enables you to set tight security efficiently within your network at a minimal cost.

Microsoft’s Technet website, www.technet.microsoft.com, offers several technical publications and online seminars that describe Vista’s advanced IPSec and Firewall features as well as their implementation. These topics are beyond the scope of this chapter. Instead, Allied Telesis recommends that you consult Technet for additional information.

By default, the IPSec Offload property is set to Disabled.

Note

The IPSec Offload feature applies only to Windows Vista and

Windows 7.

To change the IPSec Offload setting, do the following:

1.For Windows Server 2003 and Windows XP systems, access the System Properties Dialog Box. See “Modifying Configuration Properties” on page 39.

For Windows 2008 R2, Windows 7, and Windows Vista systems, access the Device Manger for your operating system:

To access the Device Manager window in Windows 2008 R2 or Windows 7, see “Selecting the Device Manager in Windows 2008 R2 and Windows 7” on page 44.

To access the Windows Vista Device Manager, see “Selecting the Device Manager in Windows Vista” on page 45.

2.Click the Advanced tab.

The Advanced tab is shown in Figure 21 on page 56.

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Allied Telesis AT-2972LX10/LC, AT-2916LX10/LC manual IPSec Offload
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AT-2916LX10/LC, AT-2972LX10/LC specifications

Allied Telesis has long been recognized for its commitment to delivering high-performance networking solutions, and the AT-2972LX10/LC and AT-2916LX10/LC models exemplify this tradition of excellence. These products are designed to meet the demanding requirements of modern businesses looking to enhance their network infrastructure with reliable and efficient connectivity options.

The AT-2972LX10/LC is a media converter that features two SFP (Small Form-factor Pluggable) slots, enabling users to connect to a variety of fiber optic networks. It supports a range of optical transceivers, providing flexibility in network design to suit different distance and bandwidth requirements. This media converter is particularly effective in extending the reach of Ethernet networks, capable of transmitting data up to 80 kilometers through single-mode fiber. This makes it an ideal choice for organizations with geographically dispersed locations needing robust connectivity.

On the other hand, the AT-2916LX10/LC is a layer 2 switch tailored for small to medium-sized businesses. It is equipped with 16 10/100/1000Mbps Gigabit Ethernet ports, ensuring that high-speed data transfer and efficient bandwidth utilization can be achieved. Additionally, it features advanced quality of service (QoS) capabilities that prioritize critical data traffic, ensuring that high-priority applications function smoothly without disruption.

Both models utilize advanced technologies that enhance performance and reliability. With support for MAC address learning, auto-negotiation, and full-duplex transmission, these devices adapt seamlessly to various network conditions. They are compliant with IEEE standards, ensuring interoperability with a wide range of networking equipment. Moreover, they offer extensive management features, including SNMP support for proactive monitoring and diagnostics, enabling network administrators to maintain optimal performance and swiftly address any potential issues.

The build quality of these devices also reflects Allied Telesis' dedication to reliability. The AT-2972LX10/LC and AT-2916LX10/LC are designed to operate in diverse environmental conditions, making them suited for deployment in both office and industrial settings. Furthermore, they incorporate energy-efficient designs that reduce power consumption without compromising performance, aligning with the increasing demand for sustainable technology solutions.

In summary, the Allied Telesis AT-2972LX10/LC and AT-2916LX10/LC are highly effective networking solutions that cater to businesses looking to optimize their connectivity. With their comprehensive features, support for advanced technologies, and commitment to reliable performance, these devices are well-equipped to meet the challenges of today’s networking landscape. They represent a strategic investment for any organization aiming for enhanced communications and operational efficiency.
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