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This GNS3 labs course is lab-focused and covers the implementation, capturing, and analysis of the technologies from Cisco CCNA Routing and Switching (ICND1 and ICND2). Each Nugget is designed to assist you in creating Cisco networks using GNS3 1.x, and performing protocol analysis using Wireshark. All of this can be done on a single computer without external hardware (no physical routers or switches required). For theory and additional training regarding the technologies implemented in this course, please refer to our ICND1 and ICND2 courses here at CBT Nuggets....
This GNS3 labs course is lab-focused and covers the implementation, capturing, and analysis of the technologies from Cisco CCNA Routing and Switching (ICND1 and ICND2). Each Nugget is designed to assist you in creating Cisco networks using GNS3 1.x, and performing protocol analysis using Wireshark. All of this can be done on a single computer without external hardware (no physical routers or switches required). For theory and additional training regarding the technologies implemented in this course, please refer to our ICND1 and ICND2 courses here at CBT Nuggets.

This CBT Nuggets Hands-on Labs using Wireshark and GNS3 course provides a practice environment for individuals interested in mastering networking technology through practicing hands on with GNS3 labs!

Note: The technology associated with this course is currently outdated. However, this course still retains value as a training resource.

Recommended Experience
  • Basic understanding of concepts taught in ICND1 and ICND2
Recommended Equipment
  • GNS3 v1.x
  • Cisco IOS image (12.x or 15x) supported by GNS3
Related Certifications
  • CCNA Routing and Switching
Related Job Functions
  • Network technician
  • Network engineer
Keith Barker has been a CBT Nuggets trainer since 2012 and holds a variety of networking and security certifications, including CCIE R&S, CCIE Security, (ISC)2 CISSP, Palo Alto CNSE, and Check Point CCSA.
 show less
1. Welcome and Overview (5 min)
2. IPv4 Ethernet Broadcast (7 min)
3. IPv4 Ethernet Multicast (10 min)
4. CDP on Ethernet (7 min)
5. IPv4 Telnet (8 min)
6. IPv4 SSH (8 min)
7. IPv4 ICMP (8 min)
8. IPv4 DNS (10 min)
9. IPv4 DHCP (14 min)
10. IPv4 EIGRP (13 min)
11. IPv4 OSPF (9 min)
12. Cisco IOS Traceroute (12 min)
13. ARP (19 min)
14. 802.1q Trunk with IPv4 (17 min)
15. EtherChannel (13 min)
16. Spanning Tree Protocol (STP) (22 min)
17. Broadcast Storm (10 min)
18. Topology Change with STP (11 min)
19. Root Port Selection in STP (15 min)
20. Inter-VLAN Routing (Ext. Router) (13 min)
21. Multi-Layer Switch Inter-VLAN Routing (14 min)
22. NTP (9 min)
23. HSRP (17 min)
24. GLBP (20 min)
25. Static NAT (19 min)
26. Dynamic NAT (9 min)
27. Port Address Translation (14 min)
28. IPv4 GRE (21 min)
29. IPv6 Addresses (15 min)
30. IPv6 L3 to L2 Mapping (13 min)
31. IPv6 RS and RA (6 min)
32. IPv6 EIGRP (12 min)
33. IPv6 OSPF (11 min)
34. Frame Relay (16 min)
35. HDLC (11 min)
36. PPP and CHAP (9 min)
37. IPsec VPNs (13 min)

Welcome and Overview


My name is Keith Barker, and on behalf of the entire CBT Nuggets family, I'd like to welcome you to the CCNA Hands-on Labs Using Wireshark and GNS3. I am literally giddy about this course. I had so much fun creating it, and in this introduction I wanted to give you a quick overview of where this fits into the courses that can prepare you to become a Cisco Certified Network associate and share with you some tips about how to get the absolute most from this course.


Let's begin. It's a lot of fun to get things that we like all in the same location. For example, I'd like you to imagine there's a table in front of you, and there's three of your favorite meals on three separate plates all sitting there on the table.


Or maybe you're at a party, and there's three of your favorite friends that are all at that party with you, and you're having a great time. That feeling of having three things that you really enjoy together at the same time is a feeling that I've had over the past several weeks as I put together this course for you and I to go through.


And the three elements that we are going to enjoy together are, first of all, Wireshark, which is a fantastic and free protocol analyzer that can help us really see what's happening on our networks. The second item is the ability to create labs very, very quickly, on the fly, using one of my favorite tools of GNS3, which is an open source and free emulation tool.


And the third item is Cisco iOS, and the commands that we can put into our Cisco devices, such as routers and switches, to build and create and make these networks go. And it just so happens that these three letters are also three initial letters from Watch, Learn, and Conquer.


Now, this course is created for a lot of different people. For example, an individual who's just starting to work with computer networks and learning about it. They might want to go ahead and start with CompTIA's Network+ to get a solid foundation in the basics of networking, and then they could leverage that forward as they started work on Cisco's CCNA.


And each of these rectangles here in this diagram represent courses that are available from CBT Nuggets. And what I've discovered, and what I want to share with you, is that an individual like you or I can master a topic-- not just learn about it, but master it-- by enjoying the Nuggets, watching those, as well as doing hands-on practice of those techniques that they're learning in those videos.


So, a big part about the learning is the labbing it up and hands-on practice that goes along with that. And so to assist you with that, one of the big benefits of this course, CCNA Hands-on Labs Using Wireshark & GNS3, is to give you the hands-on practice that you, on your own, can do, and that will assist you in mastering those skills that you're learning in the ICND1 and ICND2 Nuggets.


So, I've set up a timeline here to give you a visual representation of how these courses fit together, to assist you in getting your CCNA. And you'll notice just shortly after the CCENT begins, the CCNA Hands-on Lab starts just after that. Each of the Nuggets in this course-- in the CCNA Hands-on Lab course-- will assist you in getting up to speed very quickly with a lab environment on your own inside of GNS3 that you can practice with as you're watching the other ICND videos.


Now, there's also an IPv4 Subnetting course here at CBT Nuggets that's also extremely important, and that applies both to ICND1 and ICND2. That's kind of why it's hovering between the two. There's also a Cisco Route and Switch Troubleshooting Mastery course here at CBT Nuggets that also will be extremely helpful in your preparations and mastery of the topics taught in ICND1 and ICND2.


Now, down here at the bottom I've got the exam walkthrough for ICND1 and the exam walkthrough for ICND2 respectively, and those are the tail end of your ICND1 and ICND2 preparations, respectively. So, in creating this visual roadmap, I wanted to give you some tools that you could use to visually identify which courses and which resources right here at CBT Nuggets you can leverage and use that will assist you as you prepare and master the concepts during your CCNA certification from Cisco Systems.


As we go through these Nuggets together, I've included lab configurations for each of the steps that we're doing in each of the Nuggets. So, for example, if we're doing a Nugget on Spanning Tree Protocol or we're doing a Nugget on IPv6 EAGRP, you'll not only have the Nuggets to watch the configurations as we implement them together, you'll also have as part of the Nugget Lab files the configurations and step by step commands that we're using in the Nugget, so you can use those as a reference as well as later when you're labbing this up and practicing it on your own.


Also, in each of these videos, we're going to be capturing the traffic that's going across the network and then taking a look at that traffic inside of Wireshark, the protocol analyzer, and that's going to serve two fantastic purposes. Number one, it's going to help reinforce the concepts of what we're learning as we see the traffic on the network.


And secondly, you and I are going to increase our skills together as we work with Wireshark as a protocol analyzer, and those skills that we learn in these Nuggets translate directly to skills that we can use in a production environment to solve problems.


And what I've noticed about people who start working with Wireshark is they kind of get a bug, like, oh my gosh, this is so amazing, and many people want to dive deeper into Wireshark. And to assist with those who want to go deeper into just Wireshark, we have a complete and separate dedicated Wireshark course right here at CBT Nuggets that's available for you.


You and I are going to have a lot of fun as we go through these Nuggets together, and I want to encourage you-- every single Nugget, I want to encourage you personally to lab it up and practice what we do together. Practice it in your own lab environment because, my friend, that practice that you do will increase your skills daily as you get better and better, working with GNS3, working with Cisco iOS, and working with Wireshark.


So, I am uber-excited about all these Nuggets, to go through them with you, one by one, and we'll start that in our very next Nugget. Meanwhile, I hope this has been informative for you, and I'd like to thank you for viewing.

IPv4 Ethernet Broadcast

IPv4 Ethernet Multicast

CDP on Ethernet

IPv4 Telnet







Cisco IOS Traceroute


802.1q Trunk with IPv4


Spanning Tree Protocol (STP)

Broadcast Storm

Topology Change with STP

Root Port Selection in STP

Inter-VLAN Routing (Ext. Router)

Multi-Layer Switch Inter-VLAN Routing




Static NAT

Dynamic NAT

Port Address Translation


IPv6 Addresses

IPv6 L3 to L2 Mapping

IPv6 RS and RA



Frame Relay



IPsec VPNs

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Intermediate 8 hrs 37 videos


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Keith Barker
Nugget trainer since 2012