Obtaining Technical Assistance

To see security advisories, security notices, and security responses as they are updated in real time, you can subscribe to the Product Security Incident Response Team Really Simple Syndication (PSIRT RSS) feed. Information about how to subscribe to the PSIRT RSS feed is found at this URL:

http://www.cisco.com/en/US/products/products_psirt_rss_feed.html

Reporting Security Problems in Cisco Products

Cisco is committed to delivering secure products. We test our products internally before we release them, and we strive to correct all vulnerabilities quickly. If you think that you have identified a vulnerability in a Cisco product, contact PSIRT:

•For Emergencies only — security-alert@cisco.com

An emergency is either a condition in which a system is under active attack or a condition for which a severe and urgent security vulnerability should be reported. All other conditions are considered nonemergencies.

•For Nonemergencies — psirt@cisco.com

In an emergency, you can also reach PSIRT by telephone:

•1 877 228-7302

•1 408 525-6532

Tip We encourage you to use Pretty Good Privacy (PGP) or a compatible product (for example, GnuPG) to encrypt any sensitive information that you send to Cisco. PSIRT can work with information that has been encrypted with PGP versions 2.x through 9.x.

Never use a revoked or an expired encryption key. The correct public key to use in your correspondence with PSIRT is the one linked in the Contact Summary section of the Security Vulnerability Policy page at this URL:

http://www.cisco.com/en/US/products/products_security_vulnerability_policy.html

The link on this page has the current PGP key ID in use.

If you do not have or use PGP, contact PSIRT at the aforementioned e-mail addresses or phone numbers before sending any sensitive material to find other means of encrypting the data.

Cisco Technical Support provides 24-hour-a-day award-winning technical assistance. The Cisco Technical Support & Documentation website on Cisco.com features extensive online support resources. In addition, if you have a valid Cisco service contract, Cisco Technical Assistance Center (TAC) engineers provide telephone support. If you do not have a valid Cisco service contract, contact your reseller.

Release Notes for Cisco Aironet 802.11a/b/g Client Adapters (CB21AG and PI21AG) Install Wizard 3.0

	OL-8338-01	31

CB21AG and PI21AG specifications

Cisco Systems is renowned for its innovative networking solutions, and the CB21AG and PI21AG are significant additions to its portfolio, designed to enhance connectivity in diverse environments.

The Cisco CB21AG is a compact and versatile 802.11a/b/g/n wireless access point tailored for mission-critical applications. One of its standout features is its dual-band capability, operating simultaneously on both the 2.4 GHz and 5 GHz bands. This flexibility facilitates enhanced performance, allowing users to optimize their wireless networks to better meet the specific demands of various devices.

Incorporating advanced technologies such as Cisco CleanAir, the CB21AG intelligently identifies and mitigates sources of interference, ensuring a more reliable wireless experience. This feature not only enhances the quality of area coverage but also provides better performance metrics for users. Furthermore, the CB21AG supports Power over Ethernet (PoE), allowing easier installation and placement by eliminating the need for additional power sources.

On the other hand, the Cisco PI21AG is an equally robust offering, designed for wireless deployments in diverse industries, including retail, healthcare, and education. The PI21AG extends the benefits of dual-band connectivity to provide seamless roaming capabilities, crucial for environments where users frequently move between access points.

The PI21AG is equipped with advanced security features that safeguard the network against unauthorized access and breaches. This includes WPA3 security protocols, which enhance encryption and improve overall security. Additionally, it supports advanced network management capabilities, enabling IT departments to monitor performance metrics and make real-time adjustments to optimize user experience.

Both the CB21AG and PI21AG are designed with scalability in mind, ensuring they can grow with an organization’s needs. Their lightweight designs facilitate easy mounting in various locations, ensuring that users can obtain the best possible connectivity regardless of their environment.

In conclusion, the Cisco CB21AG and PI21AG represent state-of-the-art wireless access solutions, with key features that address the needs of modern networking demands. Their robust design, advanced technologies, and strong security measures make them excellent choices for organizations looking to enhance their wireless capabilities, ensuring reliable and efficient connectivity.