Video – EIGRP Stub’s

I have been going over some of my summary topics for EIGRP and just decided to lab one out so that I could see the effect of stub networks on convergence etc.

I have attached a zip file with the GNS3 net file that I used for this lab if you want to follow along as well.

There are still some kinks to work out with the recording of the videos so if you have any feedback please let me know.

The net file can be downloaded here.

Study Plan – CCNP Route

At the moment I am in the process of reading the Foundation Learning Guide by Diane Teare from cover to cover. When I first started my CCNP studies I purchased the BSCI (the precursor to the ROUTE exam) exam certification guide.

If I could offer one piece of useful advice it would be to get the FLG instead of the cert guide and the FLG is a lot easier to read and covers more of the information you need to know. There is one person out there that covered the ROUTE exam cert guide from cover to cover and then took the exam only to find that there were big parts that were missing from the guide, when he later used teh FLG it covered said points and he passed ok.

Well anyway, side track over! At the moment I am planning on taking the ROUTE exam in just over 2 weeks as long as I don’t hit a massive brick wall in my studies. If I do fail the exam (and ofcourse I’m hoping I don’t) then I will look into purchasing a subscription to the newly released CBT Nuggets for the ROUTE exam, they are not exactly cheap at $199 for a month but I know that the nuggets combined with the FLG will make me ready for any questions the exam can throw at me.

Useful Multicast Addresses

Whilst multicast has been removed from the new CCNPv6 exams this still doesn’t mean you get to escape it, there are several addresses that I sometimes find hard to remember which is which which are detailed below.

A lot of the modern routing protocols (RIPv2, EIGRP, OSPF) use multicast over the older method of broadcast (RIPv1) to communicate with adjacent routers/neighbours. This gives the advantage that not all hosts will receive and therefore have to process these packets that are for instance destined for the EIGRP process as they do not subscribe to the relevant multicast address. – The All Hosts multicast group that contains all systems on the same network segment. – The All Routers multicast group that contains all routers on the same network segment. – The OSPF All Routers address. Used to send Hello packets to all OSPF routers on a network segment. – The OSPF All DR Routers address. Used to send OSPF routing information to OSPF designated routers on a network segment. – The RIP version 2 group address. Used to send routing information using the RIP protocol to all RIP v2-aware routers on a network segment. – EIGRP group address. Used to send EIGRP routing information to all EIGRP routers on a network segment.

Exam Tip: Learn to count…

Just a quick exam tip for all those people that are studying for your exams.

Whilst it may be easy to just open up calculator or jump on over to when you are working out wildcard masks etc. learn to not get into the habit.

When you are in the exam room you don’t have access to either of the above so get practising whilst out of the exam room so that you are spending less time on you maths and more time on the questions.

The ambiguous first post…

Taking a page from a few others that I have been following I have decided to start a blog to document my journeys along my way to gaining a set of the coveted CCIE digits.

Just to add a little back-story my name is David Rothera and I’m 21 from Leeds, England.

I have been working in the network support world for the last 2(ish) years working for a network service provider in Harrogate, England. Whilst working for them I have had experience of all kinds of Cisco hardware ranging from little 837’s right up to the 7609 monsters.

When I started at the company my only knowledge of networking was that of being able to set up a simple home network, everything else was a mystery to me.

Shortly after starting my position I could feel myself being pulled more and more down the dark path that was Cisco (compared to the other path that would have been the server support side of things) and that is where my story starts I suppose.

Back in October 2008 (around 2 months after starting the job) I completed the first part of my CCNA (ICND1) and started to work towards my ICND2 which actually took until June ’10 complete. This was not because I couldn’t complete it, it was more that I had put the certification track on the back burner.

I am currently studying towards the first part of the CCNP (the new track of ROUTE/SWITCH/TSHOOT) and aim to hopefully have it complete by the end of the year (yes this is quite ambitious but hey, you have to have goals right!?).

I will be using this blog as a way of posting things that I have learned whilst studying, posting labs and generally talking about the certifications.