Adding VPCS to GNS3 v1.1

gns3_icon_256x256I love using GNS3 when I am studying as I can integrate a Virtual Machine, running a TACACS+ server for example, however this does come at a cost of CPU and RAM utilization.

I don’t always need a full Linux VM running when all I want to do is ping or traceroute between two hosts on the network, this is where Virtual PC Simulator (VPCS) comes into play. VPCS is a lightweight PC simulator that has a basic set of network commands such as ping, traceroute and telnet. It does not consume the CPU and memory resources that adding another router or VM would use. VPCS can simulate up to 9 separate ¬†PC at a time. Continue reading Adding VPCS to GNS3 v1.1

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Install VirtualBox for use in GNS3

Virtualbox_logoA reader recently requested that I do a post on installing VirtualBox and integrating it into GNS3 on a Linux install, so here it is.

In this post I provide step-by-step installation details for VirtualBox 4.3.18 (the latest version available) as well as the installation of the vboxwrapper for integration into GNS3. Continue reading Install VirtualBox for use in GNS3

Linux IP Subnetting Tools

unnamedIP subnetting is one of the core topics that is covered in the CCNA and is something that every network engineer worth his/her salt will be able to do in their head. Having said that though, there are times when you just cant be bothered to do it in your head, we are human after all and by default lazy. Continue reading Linux IP Subnetting Tools