Archive for the ‘wireless spectrum analysis’ Tag

Xirrus Introduces Advanced RF Security Manager (RSM) for 802.11n Networks

Intelligent Security at the Network Edge Minimizes Risk in Wi-Fi Networks

Thousand Oaks, CA – Xirrus, Inc., the only Wi-Fi “Power-Play” in the industry, announced today its advanced RF Security Manager (RSM) for improving security and minimizing the risk in deploying 802.11n wireless networks. Leveraging an integrated 24/7 threat sensor and hardware-based encryption/decryption in each Array, RSM secures the Wi-Fi network from multiple types of threats. The result delivers uncompromised overall network security with greater flexibility and performance compared to traditional centralized Wi-Fi networks.

Today’s Wi-Fi networks face a number of potential security threats in the form of rogue access points, ad-hoc clients, unauthorized clients, wireless-based attacks, eavesdropping, etc. As 802.11n continues its increased adoption in enterprise networks, the importance of defending against these threats is becoming more critical.

The Xirrus Wi-Fi Array enables the efficient deployment of high performance, maximum security 802.11n networks with a multi-radio design that integrates a dedicated 24/7 threat sensor. With this threat sensor radio scanning all channels in the 2.4GHz and 5GHz spectrums, RSM searches for security threats and automatically mitigates them. Traditional Wi-Fi solutions must time-slice a user servicing radio with the security scan function, compromising the performance of the wireless users and the effectiveness of the security scan.

High performance encryption/decryption in the enterprise Wi-Fi network is a MUST. The Wi-Fi network needs to support each client using the highest level of encryption (WPA2 Enterprise/128 bit AES) and without degrading the overall performance of the network. The Xirrus Wi-Fi Array incorporates hardware-based encryption/decryption into each Array, delivering line-rate encryption at the edge of the network instead of at a choke point within the centralized controller of traditional Wi-Fi solutions.

“RSM provides a simple, scalable security solution that enables any organization to proactively mitigate wireless threats, enforce enterprise policies, and prevent performance problems. It offers the visibility and control over the wireless airspace needed to enable an enterprise to reliably deliver the same standards of security performance and compliance for their wireless networks that they expect from their wired networks,” said Dirk Gates, founder and CEO of Xirrus.

The RSM (RF Security Manager) package includes:

• Wireless IDS/IPS

• Wireless stateful firewall

• Line-rate encryption/decryption

• Security alerts and logging

• User group policies

• Authenticated guest access gateway

• NAC integration

• PCI audit compliance enforcement

RSM is part of a family of functionality packages for the Xirrus Wi-Fi Array, which also includes the RF Performance Manager (RPM) and RF Analysis Manager (RAM). RSM is available now in the Xirrus ArrayOS 4.0.6 software release.

Sign up for your free site survey by visiting us at http://www.xirrus.com/sitesurvey or by calling 800-947-7871.

802.11n Deployment Considerations – Troubleshooting & Analysis Tools

This is the second in a series of 802.11n Deployment Considerations to include cabling, power, system architecture, etc. The focus of this particular post is to discuss the deployment considerations related to troubleshooting and analysis tools when deploying 802.11n wireless LANs.  

Packet Analysis 

One of the main troubleshooting & analysis tools for WLAN engineers is a wireless packet capture program. Personally, I use both OmniPeek Professional as well as the AirPcap device from CACE Technologies.  With wireless packet capture programs, it is important for you to ensure both the wireless NIC you are using and the software support 802.11n functionality.  Otherwise, 802.11n features such as channel bonding, frame aggregation, and block acknowledgement might not display properly (or show up in your display at all).  AirPcap sells a specific model for 802.11n, called their AirPcap Nx.  

Spectrum Analysis 

Another important troubleshooting tool for WLAN engineers is a Spectrum Analyzer.  I use both the AirMagnet Spectrum Analyzer and the Wi-Spy Spectrum Analyzer from MetaGeek.  If you read my rant (post) regarding 2.4 GHz vs. 5 GHz for 802.11n networks, hopefully you realize the increasing importance of the 5 GHz spectrum.  Therefore, I would suggest you utilize a dual band spectrum analyzer.   The only Wi-Spy product that is dual band is the Wi-Spy DBx.  

Another spectrum analyzer troubleshooting tool that I am curious to try is the AirMagnet Airmedic Product.  If anyone has used the Airmedic product, leave a comment letting me know your thoughts!  

Wireless IDS/IPS 

While most people think of wireless intrustion detection & intrusion detection as a security tool, they can also be used monitor and preserve the overall well being of the WLAN.   Therefore, it makes sense to deploy 802.11n capable sensors for security, troubleshooting, & analysis.  

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