MPLS Case Study: Why Route Summarization is not Recommended on Loopbacks in an MPLS Environment - Network

This article focuses on the impact of route summarization summary on loopback addresses in an MPLS environment and what work-arounds are available to overcome problems caused by the route summarization performed by ABR (Area Border Router). LSR (Label Switch Router) - LDP (Label Distribution Protocols)

http://www.firewall.cx/networking-topics/wan-technologies/917-cisco-mpls-loopback-sum.html

VMware: End of Availability of ESX 4.x - Time to Upgrade.

VMware Announces End of Availability Date for VMware vSphere� ESX hypervisor 4.x and VMware Management Assistant Versions 1 and 4

http://www.firewall.cx/news/161-Software/921-vmware-esx4-eoa.html

How to Recover & Create "Show Desktop" Icon Function on Windows 7, Vista, XP and 2000

Learn how to create or restore the Windows Show Desktop icon (Show Desktop.scf)to hide, restore applications and easily access your desktop. Covers Windows XP, Vista, Windows 7, Windows 2000 and Windows 2003 Server

http://www.firewall.cx/microsoft-knowledgebase/windows-2000-server/920-windows-show-desktop.html

How to Enable & Disable Phone Ports on Cisco ATA 186/188 for CallManager - CallManager Express

This article shows how to enable or disable the first or second phone port on the Cisco SCCP ATA 186/188 telephony adaptor. Learn how to identify Cisco SCCP/SIP ATA phone ports on CUCME (CME), plus the parameters-changes required to disable or enable them.

http://www.firewall.cx/cisco-technical-knowledgebase/cisco-voice/918-cisco-voice-ata-ports.html

How to Upgrade - Update Cisco ATA186 / 188 Firmware and Reset to Factory Default

This article shows how to easily upgrade the firmware on a Cisco ATA 186 - 188. Instructions to reset to factory defaults is also included. You'll also find a brief introduction on the Cisco ATA and differences between the two models.

http://www.firewall.cx/cisco-technical-knowledgebase/cisco-voice/858-cisco-voice-ata-186-upgrade.html

Book Review: The Official VMware VCP5 Certification Guide

Our latest review comes from VMware press: The Official VCP5 Certification Guide. Learn how this cert guide can help you earn your VCP5 certification and master VMware's vSphere 5 virtualization environment.

http://www.firewall.cx/site-news/916-book-review-vcp5.html

Risk Management for Cisco Unified Communication Solutions - Countermeasures & Mitigation

Understand the security risks of Cisco Unified Communication environments. We cover risk-threat definitions, type of threats, risk of impact, Mitigating Risks, Risk Management Specifics for Cisco UC and much more.

http://www.firewall.cx/cisco-technical-knowledgebase/cisco-voice/914-cisco-unified-com-risk-management.html

Interview: Akhil Behl Double CCIE (Voice & Security) #19564

Interview of Akhil Behl - Double CCIE (Voice & Security)and Cisco Press author. Discover Akhil's troubleshooting techniques, guidelines in designing and securing VoIP networks, advantages and disadvantages of Cisco VoIP Telephony, how he obtained his double ccie certification and much more!

http://www.firewall.cx/general-topics-reviews/ccie-experts/915-akhil-behl.html

Book Review: Securing Cisco IP Telephony Networks - By Akhil Behl Double CCIE (Voice & Security) #19564

Cisco Press Review:Securing Cisco IP Telephony Networks. Network security is of paramount importance and IP Telephony is not to be left behind. This book aims to explain an End-to-End IP Telephony Security approach and architecture. Read our exclusive review of this outstanding title!

http://www.firewall.cx/site-news/913-book-review-secure-voip-networks.html

Firewall.cx - Cisco CCIE Experts & Cisco Press Authors Collaboration

Firewall.cx announces its collaboration with Cisco CCIE experts and Cisco Press authors. We’ll be interviewing these experts and revealing how they managed to obtain their certifications, how they deal with challenging problems, understand their proven troubleshooting techniques, listen to their advice for newcomers and engineers seeking to increase their knowledge and expertise, plus much more!

http://www.firewall.cx/site-news/912-news-ccie-authors.html

Unity Express License Setup & Installation - Software Activation

This article shows how to verify, register and assign a Cisco Unity Express license. Topics covered: Cisco Product Authorization (PAK) registration, license download, unity express software activation, Unity Express license installation, understanding output of show license commands and many useful hints & tips. Covers CME, UC500, UC520, UC540, UC560 systems

http://www.firewall.cx/cisco-technical-knowledgebase/cisco-voice/911-cisco-voice-ue-software-activation.html