Category Archives: GNS3

Spanning Tree Protocol (STP) on Linux with GNS3 and VMware

What the heck? You didn’t think that the Spanning Tree Protocol or STP is something that is only related to Cisco gear, did you? Well, it is not. It is standard based protocol defined in the IEEE 802.1D. At least … Continue reading

Posted in GNS3, LINUX, Virtualization, VMWare | Tagged , , , | 2 Comments

Connecting VMware Workstation and Cisco GNS3 Lab – Linux Edition

On August the 7th in 2013, we talked about connecting Cisco world made in GNS3 to another world, the VMware Workstation world. All on our laptops. We can recall this lab by clicking here. This way we could run Cisco … Continue reading

Posted in ACS 5.x, Cisco, GNS3, LINUX, Virtualization, VMWare | Tagged , , , , , | 2 Comments

Connecting VMware Workstation and Cisco GNS3 Lab

One of the most fascinating things now days for us network/security/virtualization guys is possibility to carry our labs with us. We go on a business trip and not only we present something with the Power point, but we also demonstrate … Continue reading

Posted in AAA, ACS 5.x, ACS/RADIUS/TACACS, Cisco, GNS3, Virtualization, VMWare | Tagged , , , | 7 Comments

ASA Pre-8.3 and Post-8.3 NAT – Static NAT

In our previous blog, we compared a differences with dynamic NAT/PAT between pre-8.3 and post-8.3 ASA code. Now we will do the same with a static NAT. The diagram is the same: We want to allow all users from the … Continue reading

Posted in ASA, Cisco, GNS3, NAT | Tagged , , , , , , | 1 Comment

ASA Pre-8.3 and Post-8.3 NAT – Dynamic NAT/PAT

I like short blogs. When reading a long one, when I reach the bottom, I forget what was at the beginning. This one will be short. I would like to demonstrate the differences in configuring dynamic NAT for Internet access … Continue reading

Posted in ASA, GNS3, NAT | Tagged , , , | 1 Comment

Windows 8 and GNS3. Already?

Now don’t get me wrong – I’m not kind of guy that rushes to install newest and “greatest” Windows products, but one of my laptops is crying out loud to be reinstalled! Windows 7 *was* working nice these years, but … Continue reading

Posted in GNS3, Microsoft, Windows | Tagged , , , | 36 Comments

Cisco IPS sensor scenario two – Inline Interface Pairs

For all of you that are like me preparing for CCIE Security lab exam and are practicing IPS sections, I will try to do IPS 6.x in GNS3 lab environment. There are good chance that CCIE Security is shifting from … Continue reading

Posted in Cisco, GNS3, IPS | Tagged , , , , | 15 Comments