Category: CCNP


GNS3-Topology: EvilRouters-Weighting To Influence BGP Routing

Written by LBSources from on March 14th, 2009 | 6 Comments

This is an older lab that is part of the BGP series labs that Jeremy over at is building. The labs are great and they will surely serve someone some great lab experience by the time hes done with them all. This lab picks up from: – Configuring Basic BGP GNS3-Topology: EvilRouters- BGP [...]


Core and 2 distribution blocks with L3 and L2 access switches

Written by pierky from on March 7th, 2009 | 33 Comments

I just arranged this lab I used when I was studying for CCNP, I hope someone will find it useful. We have a 2 distribution blocks network linked with the core layer; all elements are dual linked to the upstream layer for redundancy. Block 1 has L3 access switches, running EIGRP as stub routers. Distribution [...]


GNS3 Topology: MPLS VPN and Traffic Engineering

Written by pierky from on January 23rd, 2009 | 62 Comments

Another great lab from Pierky! Thanks!! Routers P1, P2, P3 and P4 are in the core, just running OSPF in area 0. Each router has Loopback 0 with address 10.0.1.x (where x is the router number – P1 = Provider-edge routers PE1, PE2, PE3 and PE4 run OSPF in area 0 too; they have [...]


GNS3-Topology: EvilRouters- BGP Over Multilink PPP Lab

Written by LBSources from on January 11th, 2009 | 66 Comments

BGP for me is one hell of an interesting routing protocol. Until I got into working with enterprise networks, I never realized how much it was used. After working with it now for about 2 years, it’s really grown on me and is a part of the CCNP study which I cant wait to make [...]


GNS3-Topology: EvilRouters – Multilink-PPP Lab

Written by LBSources from on December 21st, 2008 | 4 Comments

My buddy Jeremy over at EvilRouters does a great job at taking you through his labs. He includes great details and steps to getting the configurations and challenge completed. He also speaks in very simple terms which shows he cares about people understanding more than he likes hearing himself talk technical. The lab below is [...]


GNS3-Topology: CCNA & CCNP Full Mesh Topology Template

Written by LBSources from on December 1st, 2008 | 19 Comments

Chris sent me a lab which he says has helped him to work on about 95% of his CCNA and CCNP lab requirements. I think this is a clear sign that using Dynamips or GNS3 can be effective in a big way with exam preperation. That 5% left over can be achieved in a few [...]


GNS3 Topology: BSCI – EIGRP & ISIS Redistribution Lab

Written by LBSources from on December 1st, 2008 | 7 Comments

On November 15th I posted a lab contributed:BSCI OSPF Excercise Sim Question From Jim Shank. The lab was a great excercise where Jim pitched a scenario and requirement and the solution. Great lab! Jim sent me a new lab to share which is even better and has often proven to be a challenge for many. [...]


GNS3 Topology: Multicasting – PIM Sparse-Mode – Anycast RP and MSDP – IPmc Lab

Written by pierky from on November 22nd, 2008 | 16 Comments

Here is a very new lab to GNS3-Labs which we havent had before. We have plenty of OSPF, RIP and all the other common routing protocols and what not. Pierky has created this very cool lab featuring Multicast, PIM Sparse-mode, Anycast RP, MSDP. Hope you enjoy! A source (Sender) needs to send a multicast ping [...]


Video Tutorial: How to run Multi-PC topology using distributed hypervisors in GNS3

Written by LBSources from on November 16th, 2008 | 16 Comments

The guys over at BrainBump put together a great tutorial on using distributed hypervisors to improve the overall performance and increase the ability to run more routers in your labs. Onto the video intro.. This tutorial will walk you through the process of settting up a distributed GNS3 topology where you can use different external [...]


BSCI OSPF Excercise Sim Question From Jim Shank

Written by LBSources from on November 15th, 2008 | 4 Comments

A fellow reader by the name of Jim has submitted a great SIM lab for all of us BSCI seekers. In the lab he provides a scenario and within the archive he provides a solution file with all the steps to correctly solve the lab. Jim put some great effort into putting the lab together [...]


Topology: Multilayer Switching in a “Campus” Network

Written by pierky from on September 22nd, 2008 | 49 Comments

Hey we have yet another great lab from a contributor. His name is Pierky and this is one great lab .. You can also post your labs by sending them to me or by creating an account or making the post yourself and I will approve it once its complete .. I’m working on CCNP [...]


GNS3-Labs Topology: DMVPN with VRF and EIGRP Over IPSEC Tunnels

Written by LBSources from on September 14th, 2008 | 12 Comments

It’s great to see how many people love the site and what I am trying to do with it. We have another great lab from Dion with some cool learning and configurations. This is a lab for all levels. You too can share your labs and co-admin this site by shooting me an email at postmy [...]


Topology: Cisco Networkers 2008 – LABCRT-2106-OSPF-Start

Written by LBSources from on August 28th, 2008 | 16 Comments

We have another great helper to the site. Mike Litka has shared a topology he put together while at Cisco Networkers 2008. He also put these labs together using the DynaSlaxGNS3 livecd. He has always had issues with GNS3 crashing on his pc, but since using the livecd he’s had no problems at all. Give [...]


GNS3 Tutorials: BlindHog – How to build a switching lab Part 2

Written by LBSources from on July 29th, 2008 | 7 Comments

So Josh (BlindHog) came around with part 2 pretty quick. As per the his blog This is part two of my gns3 switching tutorial series. In part 1, you learned how to use a 16 port network module (NM-16ESW) to simulate many features of a Cisco switch. In this tutorial, you will learn how to [...]


GNS3 Tutorials: BlindHog – How to build a switching lab

Written by LBSources from on July 25th, 2008 | 3 Comments

In case you have had a look at our Topology: VLAN Trunking GNS3 Lab – 802.1Q – Router On A Stick & need some help with configurations have a look over at BlindHog. As per BlindHog: In this tutorial, you will learn how to build a Cisco switching lab … even though GNS3 cannot emulate [...]

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