Routing & Switching

All Routing & Switching Articles

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Cisco Networking Academy's Introduction to VLANs
Apr 7, 2014
This chapter will cover how to configure, manage, and troubleshoot VLANs and VLAN trunks. It will also examine security considerations and strategies relating to VLANs and trunks, and best practices for VLAN design.
Cisco Networking Academy's Introduction to Switched Networks
Apr 3, 2014
This chapter begins an examination of the flow of traffic in a modern network. It examines some of the current network design models and the way LAN switches build forwarding tables and use the MAC address information to efficiently switch data between hosts.
Cisco Networking Academy's Introduction to Basic Switching Concepts and Configuration
Mar 31, 2014
This chapter examines some of the basic switch configuration settings required to maintain a secure, available, switched LAN environment.
Cisco Networking Academy's Introduction to Static Routing
Mar 27, 2014
This chapter explains the types of static routes as well as the advantages and disadvantages of each type. It also addresses routing configuration and troubleshooting.
Cisco Networking Academy's Introduction to Routing Dynamically
Mar 24, 2014
This chapter explains multiple routing protocols (particularly dynamic routing protocols) and describes their relative strengths and weaknesses. It also shows how to read a routing table easily and interpret the IPv6 routing information listed within it.
Cisco Networking Academy's Introduction to Routing Concepts
Mar 20, 2014
This chapter introduces and explains the primary functions and features of a router and explains the process for connecting and configuring devices to the router. It continues by describing the process by which routers manage packets, determine data paths, and build routing tables.
An Overview of Cisco IOS Versions and Naming
Jun 28, 2013
This article covers the different Cisco IOS releases and naming structures and aims to give a single location where network engineers can look to figure out what the different releases mean.
Cisco IOS Image Concepts and Configuration
Jun 28, 2013
Cisco network engineers should know how to correctly perform a router image update/upgrade. This article covers the different image types that exist on most Cisco equipment, Cisco’s image-naming structure, and how to perform image updates/upgrades.
Cisco IOS Image Security
Jun 28, 2013
This article discusses Cisco IOS image types and provides methods to ensure that the images are complete and have not been modified. It also briefly covers digital signatures that are possible with newer Cisco hardware.
Protecting Your Network from the Wi-Fi Protected Setup Security Hole
Mar 12, 2012
Even if you’ve encrypted and secured your wireless network with Wi-Fi Protected Access (WPA or WPA2), a security hole affecting most wireless routers may make it fairly easy for those with the right tools to hack your network and connect. Eric Geier shows how to prevent this and protect your network.
Network Security First-Step: Firewalls
Feb 8, 2012
This chapter dissects a firewall’s duties to understand what makes a firewall operate and how it does its job.
Creating a Hotspot Gateway with RouterOS
Nov 2, 2009
Eric Geier shows how to set up the integrated hotspot gateway with RouterOS.
Creating a VPN Server with RouterOS
Oct 27, 2009
Eric Geier continues his RouterOS series by discussing its VPN capabilities
Supercharging Your Cheap Router with Enterprise Features
Oct 5, 2009
Did you know you can replace the firmware on your router? Eric Geier describes the highs and lows of aftermarket firmware projects.
Turn an Old PC into a LAN Server with RouterOS, Part 2
Sep 28, 2009
Eric Geier concludes his two-part tutorial on getting a RouterOS machine up and running on a spare PC.
IP Routing Use Cases
Sep 22, 2009
This chapter discusses the capabilities of the Cisco ASR 1000 series router family and then reviews how those strengths can be used to address relevant problems.
Turn an Old PC into a LAN Server with RouterOS, Part 1
Sep 21, 2009
Eric Geier shows you how to get an enterprise router at a fraction of the cost with the MikroTik RouterOS software that you can load onto an old PC.
Cisco LAN Switching Configuration : Server Load Balancing (SLB)
By David Hucaby, Stephen McQuerry
Jun 24, 2009
This chapter covers the steps required to load balance traffic to one or more server farms and firewall farms, and also explains the steps needed to define probes that test server and firewall farm functionality.
Cisco IOS XR Security
Jun 15, 2009
This chapter discusses the security aspects of the Cisco IOS XR operating system.
Five Ways to Increase Your Wi-Fi Network's Range
May 15, 2009
Eric Geier shows ways to extend your wireless network, from things you can do without spending a dime to adding additional APs.

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