Packeteer Introduces Orange Book as New Guide to Threat Containment.

Demonstrates How to Use PacketShaper Appliances to Uncover and Mitigate Network Intrusion, Firewall Breaches and Internal Network Threats

CUPERTINO, Calif. -- Packeteer([R]) (NASDAQ:PKTR), the global leader in WAN Application Optimization, today announced the availability of a new guide to configuring PacketShaper for threat containment, which details how to prevent network firewall intrusions through the use and configuration of the company's market leading PacketShaper([R])WAN monitoring and optimization appliances. Whereas traditional IDS/IPS and firewall systems focus on preventing intrusions from outside hackers and viruses, threats often still breach the network perimeter to make their way onto an enterprise's WAN. Likewise, portable computing devices such as laptops can often bring viruses and outside threats directly onto a company's LAN. Known as the Packeteer Orange Book, the threat containment guide demonstrates how organizations can effectively uncover and mitigate these threats from within their networks by utilizing the PacketShaper as a WAN application security system that screens applications and traffic and contains viruses or attacks from within the WAN or LAN.

"As a complement to our firewall security system, the threat containment offered through the PacketShaper appliance provides a one-two punch that virtually eliminates sneak attacks across our LAN and WAN," said John Arsneault, director of network operations, Harvard Business School. "The solution seeks and notifies us about threats that include viruses masquerading as applications as well as applications being used to breach our network security. We're convinced that the path to a threat-free network is a device like the PacketShaper that can monitor all traffic Co from Windows files to video and VoIP Co and then offer the right network optimization, acceleration and containment techniques to keep Harvard Business School's networks going at full speed."

"It obviously does very little good to accelerate traffic if you're also accelerating worms and viruses Co as is the case with many competing solutions," said David Puglia, vice president of marketing for Packeteer. "WAN application acceleration starts with visibility into network traffic. The Packeteer Orange Book takes that advice one step further and offers users a way to see and then mitigate network attacks using PacketShapers, educating our customer base on how to recognize and remove threats from within their networks."

About the Packeteer Orange Book

The Packeteer Orange Book addresses multiple issues that enterprises face as they attempt to both accelerate and shape their network application traffic and ensure its secure delivery. Sections in the guide include information on how to enable

* Application flow validation

* Rogue server detection

* Application overload protection

* Detection of SYN and spoofing attacks

* WAN application forensics.

This guide is available free of charge through http://www.packeteer.com/orangebook.

About Packeteer

Packeteer, Inc. (NASDAQ:PKTR), is the global market leader in WAN Optimization and Application Traffic Management for wide area networks. Deployed at more than 7,000 companies in 50 countries, Packeteer solutions empower IT organizations with patented network visibility, control, and acceleration capabilities delivered through a family of intelligent, scalable appliances. For more information, contact Packeteer at [phone] or visit the company's website at http://www.packeteer.com.

Safe Harbor Clause

The statements contained in this press release that are not purely historical are forward-looking statements within the meaning of Section 21E of the Securities and Exchange Act of 1934, as amended, including statements regarding Packeteer's expectations, beliefs, intentions or strategies regarding the future. Forward-looking statements include, but are not limited to, express or implied statements regarding future revenues, revenue growth and profitability, spending levels by existing and prospective customers, the markets for our products, new product development, liquidity and macro economic conditions. All forward-looking statements included in this press release are based upon information available to Packeteer as of the date hereof. Packeteer assumes no obligation to update any such forward-looking statements. Forward-looking statements involve risks and uncertainties, which could cause actual results to differ materially from those projected. Actual results may differ materially due to a number of factors including the perceived need for our products, our ability to convince potential customers of our value proposition, the costs of competitive solutions, continued capital spending by prospective customers and macro economic conditions. These and other risks relating to Packeteer's business are set forth in Packeteer's Form 10-K filed with the Securities and Exchange Commission on March 16, 2006, and Packeteer's Form 10-Qs and other reports filed from time to time with the Securities and Exchange Commission.

Packeteer, PacketShaper, PacketShaper Express are trademarks or registered trademarks of Packeteer, Inc. All other products and services are the trademarks of their respective owners.