Enterasys Showcases Advanced Secure Networks Solutions and Interoperability with Microsoft Network Access Protection at RSA Conference 2006.

ANDOVER, Mass. -- Demonstrates proactive, scalable network defense and response capabilities; drives greater flexibility and centralized control of complex, multi-vendor and converged network infrastructures

Enterasys Networks(R) (NYSE: ETS), the Secure Networks Company(TM), is demonstrating a full range of advanced Secure Networks capabilities for intrusion defense, behavioral event detection and proactive protection of enterprise networks at RSA Conference 2006.

Enterasys (Booth #2242) is showcasing the unique capabilities of its Secure Networks solutions to align business mandates with an IT environment that is increasingly complex, interconnected and exposed to a range of internal and external threats. Improving security immediately and incrementally, Enterasys' Secure Networks offerings help enterprises simplify the management of heterogeneous network and security appliance infrastructures. As a result, organizations are armed with the context and intelligence necessary to:

--Accurately and precisely address security vulnerabilities

--Quarantine and remediate vulnerable end systems

--Scale to address evolving threats and regulatory requirements

--Ensure the secure and reliable deployment of new productivity solutions, such as VoIP

Demonstrations encompass a range of Enterasys' products and technologies. These include the industry-leading Dragon(R) Security Suite; the company's award-winning network management and security response solution, NetSight(R) Automated Security Manager; and Enterasys' best-in-class network-based endpoint trust assessment offerings.

Controlling "Appliance Chaos" and Facilitating Consolidation

Perimeter Firewalls, Identity Management Systems and Intrusion Prevention are examples of stand-alone tools that have been deployed by many organizations. The challenge now is to interpret the security intelligence emanating from this diverse array of devices--each with its own alerting and management model--translate this into actionable responses, and enforce those actions within the network infrastructure. Clearly a consolidation of intelligence and control to fuel quick, targeted responses is crucial.

To address this, Enterasys is demonstrating Secure Networks' advanced Network Based Anomaly Detection (NBAD) and Security Information Management (SIM) capabilities across a range of third-party security devices, software and network hardware. Working together, SIM and NBAD rationalize and correlate threat information from multiple sources for rapid, specific and appropriate remediation.

Risk Management and Mitigation

Secure access to business-critical resources is a must for today's large enterprises. Malevolent threats can enter the network through any number of end points. Enterprises must effectively assess the trust level of all end points before they are permitted to connect to network resources. Importantly, this includes endpoints the enterprise does not directly control--ranging from guest PCs to network-attached security, diagnostic and surveillance systems.

Addressing this requirement to control end system access, authorizations and compliance in a large network infrastructure, Enterasys will highlight Secure Networks capabilities to apply granular policy enforcement across a wide range of diverse end systems.

Network Access Protection

Enterasys and Microsoft Corporation's Network Access Protection (NAP) product team have worked to ensure interoperability between an Enterasys Secure Networks infrastructure--including granular location services and global policy enforcement--and a Microsoft Network Access Protection environment. The result is an integration of the IT and networking infrastructures that delivers visibility and control to rapidly isolate and remediate non-compliant systems.

"Network admission control is becoming a key security requirement for enterprise IT executives, and Microsoft is committed to addressing this need with our Network Access Protection technologies," said Mike Schutz, Group Product Manager for Windows Server at Microsoft. "We are very pleased that Enterasys is working closely with Microsoft to deliver Network Access Protection solutions that work seamlessly with their infrastructure products, and to leverage the granular location services and global policy enforcement services of the Enterasys Secure Networks architecture."

Enterasys Chief Technology Officer John Roese says, "Security is about risk management. And that requires minimizing risk based on what's knowable, rather than by trying to predict what's not. From a network perspective, this means ensuring that your most critical business activities stay up and running with priority, so that threats cannot overwhelm network resources before they can be stopped. This philosophy is at the core of what Secure Networks delivers and no other vendor can match."

The Enterasys Secure Networks Advantage

Enterasys' industry-leading Secure Networks products and solutions provide the industry's most comprehensive embedded infrastructure security available today. Secure Networks delivers granular policy-based security, providing visibility and control down to the network device, individual user and application level, which enables network managers to quickly and easily detect, assess, locate and protect against attacks. This unmatched security comes from the integrated policy-based management software architecture that works with the embedded security capabilities Enterasys designs into its entire product line. Enterasys' unique architectural approach offers significant operational and business benefits, unmatched by vendors that add hardware or software to multiple network access points in an attempt to increase security. In fact, Secure Networks technology can even make networks with competitors' equipment more secure.

About Enterasys Networks

Enterasys Networks--the Secure Networks Company--provides enterprises with the most integrated, up-to-date portfolio of security-enabled network infrastructure products, centralized command and control software, and advanced security applications available today. Information about the company's award-winning line of policy-enabled switches, routers, wireless products, security software, and services is available at www.enterasys.com. (ETS-P)

This news release contains forward-looking statements regarding future events, activities and financial performance, such as management's expectations regarding future revenue and cash flow; strategic relationships and market opportunities; product development; and other business strategies and objectives. These statements may be identified with such words as "we expect," "we believe," "we anticipate," or similar indications of future expectations. These statements are neither promises nor guarantees, and actual future financial performance, events and activities may differ materially. Readers are cautioned not to place undue reliance on these statements, which speak only as of the date hereof. We expressly disclaim any obligation to update such statements publicly to reflect changes in the expectations, assumptions, events or circumstances on which such statements may be based or that may affect the likelihood that actual results will differ materially.

Some risks and uncertainties that may cause actual results to differ materially from these forward-looking statements include, but are not limited to: worldwide and regional economic uncertainty and recent political and social turmoil may continue to negatively affect our business and revenue; we have a history of losses in recent years and may not operate profitably in the future; our quarterly operating results may fluctuate, which could cause us to fail to meet quarterly operating targets and result in a decline in our stock price; we earn a substantial portion of our revenue for each quarter in the last month of each quarter, which reduces our ability to accurately forecast our quarterly results and increases the risk that we will be unable to achieve previously forecasted results; we continue to introduce new products, and if our customers delay product purchases or choose alternative solutions, or if sales of new products are not sufficient to offset declines in sales of older products, our revenue could decline, we may incur excess and obsolete inventory charges, and our financial condition could be harmed; we may be unable to upgrade our indirect distribution channels or otherwise enhance our selling capabilities, which may hinder our ability to grow our customer base and increase our revenue; we have experienced significant changes in senior management and our current management team has been together for only a limited time, which could limit our ability to achieve our objectives and effectively operate our business; there is intense competition in the market for enterprise network equipment, which could prevent us from increasing our revenue and achieving profitability; a portion of the enterprises we sell to rely in whole or in part on public funding and often face significant budgetary pressure, and if these customers must delay, reduce or forego purchasing from us, our revenues could be harmed; we depend upon a limited number of contract manufacturers for substantially all of our manufacturing requirements, and the loss of any of our primary contract manufacturers would impair our ability to meet the demands of our customers; and those additional risks and uncertainties discussed in our most recent filings with the Securities and Exchange Commission, including our definitive proxy statement filed on January 17, 2006, and our quarterly report on Form 10-Q for the fiscal quarter ended October 1, 2005.