Press Release

Redback Introduces Dynamic Subscriber Identification Technology For On-Demand Broadband Access And Services New Technology Integrates Client-less DHCP and Client-Oriented PPP Access to Provide Identification and Authentication of any IP-Enabled Broadband Device

LAS VEGAS, Nevada, Telecom 04, October 12, 2004 – Redback Networks Inc. (NASDAQ: RBAK), a leading provider of next-generation broadband networking systems, today announced a new technology built into the latest release of the software for its next-generation SmartEdge® Service Gateway platform. The technology, Dynamic Subscriber Identification, enables identification and authentication of individual subscribers and devices built for broadband Internet access. The technology enables the service provider to offer customized bandwidth, Quality of Service (QoS) and other services on a device-by-device basis, while preserving the interaction with back office billing systems.

“Dynamic Subscriber Identification forms a foundation for transforming a connection-oriented, one- size-fits-all network into a service-oriented delivery platform that provides quality, reliability, choice, and security,” said Shailesh Shukla, vice president of marketing and business development for Redback Networks. “Now individual subscribers and specific access devices can be easily identified regardless of mode of access so that proper bandwidth and quality of service, security, unified billing, service level agreements and other important attributes can be transparently and dynamically assigned.”

Dynamic Subscriber Identification accommodates Internet-enabled devices, such as set-top boxes, gaming consoles, IP telephones, handheld communicators and computers with WiFi connectivity, over multiple types of broadband access modes, including xDSL, Ethernet, fiber, wireless and more. In the home, for instance, a service provider can supply an overall Internet bandwidth and then apply a specific bandwidth for specific devices or subscribers, such as a minimum guaranteed bandwidth for a Voice over IP (VoIP) telephone or Video on Demand session to a set-top box. Traditional xDSL access requires a Point-to-Point (PPP) protocol to initiate a session. Now, Dynamic Host Configuration Protocol (DHCP) requests can be integrated with a RADIUS Authentication, Authorization and Accounting (AAA) and applied to a specific subscriber. Some of the Dynamic Subscriber Identification capabilities include:

Support for both client- and clientless-Internet devices
Full support for all PPP and DHCP protocol implementations
Integration of an EAP client for login on a wireless network
Ability to support web browser-based logins in conjunction with Redback’s NetOp™ Policy Manager and a RADIUS database
Accommodation of devices with static IP addresses
Support for multiple devices within a single Virtual Local Area Network (VLAN) and NAS Port connection
Identification by a Media Access Control (MAC) address
About Redback Networks

Redback Networks Inc., a leading provider of next-generation broadband networking equipment, enables carriers and service providers to build third-generation Smart Broadband Networks that can deliver simplified, personalized, portable subscriber services to consumers and businesses. The company's carrier-class, consumer-scale SmartEdge Router and Service Gateway platforms for Consumer IP combine subscriber management systems and edge routing and, in conjunction with the NetOp™ Element and Policy Manager platform, provide a powerful, flexible infrastructure for managing both subscribers and value-added services.

Founded in 1996 and headquartered in San Jose, Calif., with sales and technical support centers located worldwide, Redback Networks maintains a growing and global customer base of more than 500 carriers and service providers, including major local exchange carriers (LECs), inter-exchange carriers (IXCs), PTTs and service providers. For more information, visit Redback Networks at www.redback.com.

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REDBACK and SmartEdge are trademarks registered at the U.S. Patent and Trademark Office and in other countries. SMS and NetOp are trademarks of Redback Networks Inc. All other products or services mentioned are the trademark, service marks, registered trademarks or registered service marks of their respective owners.

Safe Harbor Statement under the Private Securities Litigation Reform Act of 1995

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 Redback Networks’ ability to effectively expand its leadership in furthering its next-generation broadband product family for intelligent delivery of video, voice and data services or the company’s ability to further define the future with technology that can extend its strategic infrastructure as of the date hereof, and Redback Networks 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. These risks and other risks relating to Redback Network’s business are set forth in the documents filed by Redback Networks with the Securities and Exchange Commission (SEC), specifically the most recent report on Form 10-K Form, Form 10-Q, Form 8-K, Redback’s Registration Statement on Form S-3 (File No. 333-114352), and amendments thereto, and the other reports filed from time to time with the SEC.