EIGRP stands for Enhanced Interior Gateway Routing Protocol. It is considered a hybrid routing protocol because it uses features from both link-state and distance vector routing protocols.

EIGRP is a Cisco proprietary routing protocol. Meaning that it can only run on Cisco routers.

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I think static routes get trash talked a lot by those studying for their CCNA exam. Mostly likely because they are just learning about dynamic routing for the first time and find it really fun to set up. And from that moment on static routes get pushed to the back burner and never make it into the router configuration. While static routes may have some disadvantages they also have many advantages that are worth considering.

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Now that we are finally to Part 3 of the Router OSPF Series its time to have some fun configuring OSPF. I even made a video showing you how to configure a two area OSPF implementation!

If you still havn’t read Part 1 or Part 2 yet please do so that you understand some OSPF fundamentals.

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This is Part 2 of the Router OSPF Series which will cover topics about OSPF Areas and OSPF LSA’s. Before continuing on I recommend reading Part 1 of the Router OSPF Series which gives an introduction on the topic.

For the ICND2 and CCNA exam you will only need to configure a single area OSPF implementation, but you will still be required to know many different things about a full multi-area OSPF network.

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Router OSPF is the command used to enable OSPF routing on a Cisco router. But before we get into the command syntax I want to give you a brief summary of some important OSPF details for the ICND2 and CCNA Exam.

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Routers are a very important networking devices and without them the Internet wouldn’t exist. One good thing about getting your Cisco Certification is that a majority of the routers that run the Internet are made by Cisco. In other words there is going to be a demand for Cisco Certified Network Associates for a long [...]

I have talked previously about ways to delay the huge problem of running out of unique IPv4 IP Addresses by using CIDR and Subnetting. IPv6 has so far solved the problem by offering way more than enough usable IP Addresses, but getting everything transitioned over to IPv6 will take a long time, so IPv4 is [...]

To program a Cisco router we are going to use a Command Line Interface or CLI. Basically what that means is there is no pretty user interface with graphics and buttons, we will just be typing commands. The good thing about using a CLI is that once you get past the initial learning curve you [...]

At some point in time you will need to recover the password from a Cisco router.  I had to reset the password on my Cisco 2600 router this morning and so I thought that I would share with you the steps that I performed. I have Debian Linux on my old laptop. It’s the only [...]

Routing protocols use a metric called administrative distance to help determine the best routes. The lower the number the better. Here is a list of administrative distances assigned to different routing protocols: Directly Connected – 0 Static Routes – 1 EIGRP – 90 OSPF – 110 RIPv1 & RIPv2 – 120 External EIGRP – 170 [...]