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CCDA DESGN 640-864: Designing Remote Connectivity
Oct 6, 2011
This chapter discusses wide-area network technologies and design and includes sections covering Identifying WAN Technology Considerations, Designing the Enterprise WAN, and Designing the Enterprise Branch.
Exam Profile: Introducing Cisco Voice and Unified Communications Administration v8.0 (640-461 ICOMMv8.0)
Oct 5, 2011
This article profiles the Cisco CCNA Voice 640-461 exam. Find out what you can expect to see on the exam and how you can better prepare for it.
Implementing Cisco Unified Communications Manager: Digit Manipulation (CCNP Voice)
Oct 1, 2011
This chapter describes digit manipulation tools that allow a CUCM administrator to implement flexibility and transparency in the dial plan of a company.
CCNA Security: The Zone-Based Firewall
Sep 15, 2011
A very welcome new addition in the CCNA, CCNP, and CCIE Security tracks is the Cisco IOS Zone-Based Firewall. This article aims to guide you through this new technology from Cisco.
CCNA SEC: Router Hardening
Sep 14, 2011
This article discusses various means of making sure your routers are set up with maximum security, including manually hardening the router and router hardening with Cisco SDM.
Introducing Intrusion Prevention
Sep 12, 2011
This article introduces you to the network security practice of intrusion prevention, covering detection vs. prevention, detection technologies, evasion techniques, reliable IPS, and Host IPS.
CCNP: Dynamic Trunk Protocol (DTP)
Aug 31, 2011
In this article, we will examine the details of the Dynamic Trunk Protocol (DTP) and teach you everything you need to know about it for production networks, as well as the Cisco Certification exam environment.
Mastering the TCP and OSI Models
Aug 31, 2011
This article provides you with a primer on the TCP and OSI models and presents some tricks to help remember them.
To Route or Not to Route: A Day in the Life of a Router
Aug 31, 2011
A lot goes into the decision process regarding routing, and it happens long before a packet arrives at the router for its turn to be forwarded. In this article, the author takes a close look at a day in the life of the router.
What Happens in the VLAN Stays in the VLAN
Aug 31, 2011
Discover the secrets of the VLAN and why it is a critical tool in today's networks.
Working with Protocol Analyzers and Related Certifications
Aug 30, 2011
Ed Tittel, creator of the Exam Cram series, discusses the current network protocol analyzers that any real expert needs to know. Who exactly counts as an "expert?" Ed also sorts out which of the many available certifications are really useful in identifying true masters of protocol analysis.
Implementing Cisco Unified Communications Manager, Part 2 (CCNP Voice): Examining Remote-Site Redundancy Options
Aug 25, 2011
This chapter provides an overview of the different options with remote-site redundancy in CUCM multisite installations.
CCNP Security VPN Cert Guide: Configuring Policies, Inheritance, and Attributes
Aug 24, 2011
This chapter looks at the methods available for policy assignment in real-life scenarios and reviews how these policy methods work together if more than one is assigned to a user through the inheritance mode.
Creating Custom Signatures with IPS 7.0
Aug 8, 2011
In this article, we will take a look at the process of classifying the traffic we want to match, create custom signatures for that purpose (as well as the counter-measures), and verify the custom signatures are working.
Protecting Critical Resources with Target Value Ratings (TVRs)
Aug 8, 2011
This article dives into customizing Target Value Ratings (TVRs) to provide a better fortress of security for your critical resources in just minutes.
CCNP: Troubleshooting EIGRP
Aug 3, 2011
In this article, we will examine the art of Troubleshooting EIGRP, a key topic for CCNP certification. This article will begin by reviewing key information we should keep in mind about the protocol or its proper implementation and troubleshooting, and then specific scenarios will be illustrated. The article will also provide specific command guidance and usage.
CCNP Security: Security Contexts on the Cisco ASA
Aug 1, 2011
Multiple virtual firewalls are possible on the Cisco Adaptive Security Appliance (ASA) thanks to a technology called security contexts. You create multiple security contexts in order to create your multiple virtual firewalls. While not every feature of the Cisco ASA is supported in multiple context mode, most are, and certainly enough power is present now to make this appealing for many, many implementations. This article covers the basics of security contexts on the Cisco ASA.
Exam Profile: Cisco CCDA DESIGN (640-864)
Jul 26, 2011
This article profiles the Cisco CCDA exam (640-864). Find out what you can expect to see on the exam and how you can better prepare for it.
Flexible Netflow Concepts and Configuration
Jul 22, 2011
This article takes a look at the typical uses for the Flexible Netflow feature, how it works and how it can be configured into a complete solution.
Cisco Network Infrastructure Security: Control Plane Policing Concepts and Configuration
Jul 21, 2011
This article takes a looks at control plane policing, examining what it is, how it works and how it can be configured to secure this equipment.

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