Tutorial

9 posts are filed under this tag.

Tutorial: Filtering Routes in OSPF Part 2 » Filtering Between Areas Using area filter-list

By Arden Packeer, CCIE #20716 ⋅ August 10, 2008 ⋅ 6 comments

In our last article on filtering Routes in OSPF we looked at filtering routes within an OSPF area. In this article we will be filtering routes between areas using the area filter-list command. OSPF route filtering is an important concept to be familiar with for any CCIE candidate. We will be looking at the area filter-list command first. Part 3 will then look at some of the more obtuse ways of filtering using the area range and summary-address commands. Part of being a CCIE is knowing multiple ways of configuring the same task…just in case those evil proctors decide to restrict which of those methods you can and can’t do! :)

Tutorial: OSPF Network Types & Frame-Relay Series

By Arden Packeer, CCIE #20716 ⋅ July 24, 2008 ⋅ Post a comment

Knowing the OSPF Network Types and how they work with different frame relay topologies is one of those things that you should know inside out if you are attempting the CCIE lab. This five part series of tutorials are designed to take you through all the different OSPF network types and demonstrate how they interact with Frame-Relay over various partial-mesh topologies.

Tutorial: OSPF Network Types and Frame Relay Part 5

By Arden Packeer, CCIE #20716 ⋅ July 24, 2008 ⋅ 11 comments

In my previous tutorials we looked at the different OSPF Network types and also how they interact with each other. In this tutorial we will be looking at implementing OSPF over a partial mesh Frame-Relay network with multiple hubs and spokes. This is the last of the OSPF Network Types and Frame Relay series of articles….unless I find something cool! :)

Cisco Spamming Blog Comments For New Learning Portal….Nice!

By Arden Packeer, CCIE #20716 ⋅ June 27, 2008 ⋅ 6 comments

They are obviously trying to get you to go to their new Cisco Learning Network Portal. This portal actually looks pretty cool. Its a web portal with a discussion forum etc. The CCIE section is pretty bare at the moment, but hopefully they put some cool tutorials or videos etc. Now I wonder how many of those comments on the forum are real….

Tutorial: Filtering Routes in OSPF Part 1 » Filtering Within An Area

By Arden Packeer, CCIE #20716 ⋅ June 21, 2008 ⋅ 4 comments

In addition to knowing all the different OSPF Network Types and how they relate to Frame-Relay, a CCIE candidate must be familiar with the different methods of filtering routes in OSPF. This two part series of tutorials will focus on filtering routes in OSPF, both within an area and between areas. This tutorial will focus on filtering routes within an area using distribute-lists, access-lists and using a route-map.

Tutorial: IPv6 Tunnels Part 2 - Automatic 6to4 Tunnels

By Arden Packeer, CCIE #20716 ⋅ May 31, 2008 ⋅ 8 comments

In our previous article on IPv6 tunnels, we looked at manual GRE and IPv6IP Tunnels in order to provide connectivity for IPv6 networks segregated by an IPv4 network. By tunneling IPv6 over IP, we can migrate our internal networks to IPv6 and still have communication between these networks, even though we are seperated by an IPv4 network. In this article we will be using another method to provide connectivity for IPv6 networks segregated by an IPv4 network: The Automatic 6to4 Tunnel! Mastering IPv6 is not only an important part of a CCIE candidates journey, but will become increasingly important as the global pool of IPv4 addresses diminishes….

Tutorial: Time-Based ACLS

By Arden Packeer, CCIE #20716 ⋅ May 20, 2008 ⋅ 3 comments

Time based ACLS are useful when you want to restrict traffic based on time of day. For example, you might employ time based ACLs if you wanted to only allow web surfing during a particular time of day or allow access to a server during work hours. We will be exploring these scenarios in this tutorial.

Tutorial: BGP Conditional Route Injection with inject-map

By Arden Packeer, CCIE #20716 ⋅ April 19, 2008 ⋅ 4 comments

One of the great new features that was introduced in IOS 12.3 is BGP conditional route injection. With conditional route injection we can insert more specific routes into a BGP table based on the existance of another route. Most of the routes in the current internet BGP table consists of aggregate routes. This is used to minimize the size and number of routes in global BGP routing table. The aggregation of routes can sometimes obscure more specific and accurate routing information. Wouldn’t it be cool if we could control and “un-aggregate” those routes on demand? Well that’s kinda what BGP conditional route injection does. It allows us to originate a more specific prefix into the BGP routing table based on an existing aggregated route.

MPLS VPN Tutorial

By Arden Packeer, CCIE #20716 ⋅ March 6, 2008 ⋅ Post a comment

Thanks for visiting! If you’re new here, you may want to subscribe to my RSS feed. This blog posts regular tutorials, news, and study tips about networking, especially about Cisco CCIE related topics. Go ahead, subscribe to the rss feed! You can also receive updates from this blog via email. Thanks for visiting!Human Modem has [...]

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