GigaNews


	GigaNews gives IT pros cutting edge insight into the rapidly changing products and practices needed to succeed in the dynamic wireless LAN marketplace. October 2006 In This Issue: >> Cisco Launches Second Path for Advanced Wireless Cert >> Tech Tip - WLAN Controllers and Layer 2 and 3 Transport Mode >> Cisco Enterprise Wireless Courses Rated #1 by Resellers >> White Paper – Cisco Addressing WLAN Threats with Integrated IDS & IPS >> Affordable 2.4 GHz, 5 GHz and Dual Band Antennas on Market >> Training Corner Now Two Ways to Get Cisco WLAN Certified >> Finish the year off by earning a Cisco Advanced WLAN Certification. Cisco launched a suite of new and updated courses and two learning paths to obtain an Advanced WLAN Specialization. Earn one of the most desired and recognized IT certifications available and watch your career and business reap the benefits of being a Cisco WLAN pro. Path 1 >> Cisco WLAN Fundamentals >> Cisco WLAN Advanced Topics or Path 2 >> Aironet WLAN Fundamentals & Site Survey >> Aironet WLAN Advanced Topics >> Cisco Unified Wireless Networking View Cisco Unified Wireless Networking Courses View Advanced Wireless LAN Specialization and CQS Exams Download Course Offering PDF >> Tech Tip >>WLAN Controllers and Layer 2 and 3 Transport Mode >> In the deployment of Wireless LAN controllers, what is the difference between Layer 2 and Layer 3 Transport Mode? In a nutshell, when lightweight APs first boot up, their only mission in life is to find their controller. When the controller and APs are on the same subnet or VLAN, the APs can find the controller with a simple Layer 2 broadcast. That’s easy Layer 2 deployment. But, what if the APs and controller are on different subnets or VLANs? Then, a layer 2 broadcast won’t cut it. Now, Layer 3 transport mode is required. This means the APs must acquire an IP address (usually through DHCP) and then proceed to be routed over to the subnets where the controllers reside. In layer 2 mode, the APs do not have an IP address. It is also strongly advised to avoid mixed deployments of layer 2 and layer 3 transport mode controllers. Either deploy them ALL as layer 2 or ALL as layer 3. When lightweight APs boot up, they first try Layer 2 broadcast and, upon failing to find a controller, switch over to Layer 3 and DHCP for an IP address. >> Industry News >> Cisco Enterprise Wireless Courses Rated #1 Training by Resellers >> Cisco’s Unified Wireless Networking Training was ranked the #1 vendor training by resellers according to the 2006 CRN Channel Champions Survey. GigaWave Technologies, an authorized Cisco Systems Learning Partner, develops, delivers and offers the full suite of Cisco WLAN courses. According to the survey, in which thousands of IT resellers voted, the greatest emphasis went to the quality of the training, the importance of hands-on for advanced technologies and tight control over content which keeps it constantly updated and fresh. View Full CRN Article View Award Winning Cisco Unified Wireless Networking Courses >> Cisco White Paper – Addressing Wireless Threats with Integrated Wireless IDS and IPS >> Wireless LAN security has improved dramatically since the introduction of IEEE 802.11 in 1997. When the most recent security standard, IEEE 802.11i, is employed, wireless networks are as secure-or more secure-as many wired network implementations. However, because of the ability of wireless LANs to penetrate beyond the physical boundaries of an enterprise, wireless threats exist from unauthorized infrastructure and clients. The good news for IT managers is that these threats can be detected and prevented using the Cisco Unified Wireless Network while it simultaneously provides service to wireless clients. Enterprises that do not yet wish to deploy a production wireless LAN system can deploy the Cisco® Unified Wireless Network in a monitor-only mode to ensure that wireless threats do not compromise the integrity of their wired networks and lead to the loss of confidential information, a decrease in customer confidence, or possible regulatory violations. View This Cisco WLAN White Paper View All Cisco WLAN White Papers >> Industry News >> Affordable 2.4 GHz, 5 GHz and Dual Band Antennas on Market >>TerraWave introduces a full, diverse line of wireless LAN antennas. These extremely affordable antennas offer solutions for indoor or outdoor 2.4 GHz, 5 GHz or dual band wireless applications where high-performance antennas are needed. TerraWave’s new value line includes a complete set of patch, panel, omnidirectional, rubber duck and yagi antennas at an outstanding value. Browse Wi-Fi Antennas View Wi-Fi Data Sheets

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