Networking

Vagrant supports three types of networks: public, private, and port-forwarding. The private network type has the option to use a UDP tunnel for a point-to-point link when using the vagrant-libvirt plugin. This connection type is ideal for links between virtual network devices. Refer to the following resources if you need more information: Pseudo-wires With Vagrant and Libvirt vagrant-libvirt Networks Vagrant Private Networks The only drawback with this type of connection is concerning packet sniffing....

Why not add the CSR 1000v to round out our collection of Cisco virtual appliances? Similar to the Cisco Nexus 9000v, each instance of the Cisco CSR 1000v requires a considerable amount of hardware resources to run. Again, I recommend a Mac with at least 16GB of memory and a dual-core CPU if you plan to run more than a single instance. Ingredients used in this guide: macOS Mojave (10....

The Cisco Nexus 9000v shares the same software image as its hardware counterpart, so it provides a terrific solution for feature testing and/or network automation. The only caveat is the hardware resources required to run it. I recommend a Mac with at least 16GB of memory and a dual-core CPU. Ingredients used in this guide: macOS Mojave (10.14) VMware Fusion 11 Pro Vagrant 2.2.3 VMware provider for Vagrant Cisco Nexus 9000v Switch Steps 1....

And yet another virtual network appliance to Vagrantize… Ingredients used in this guide: macOS Mojave (10.14) VMware Fusion 11 Pro Vagrant 2.2.3 VMware provider for Vagrant Cisco IOS XRv Router v6.1.3 The Cisco IOS XRV Router image is available as part of your Cisco VIRL subscription. Steps 1. Convert the disk image format type. The Cisco IOS XRv Router is provided in the qcow2 (QEMU) disk image format. The QEMU disk image utility (qemu-img) is required to convert the disk image to the vmdk (VMware) format....

Continuing my journey to Vagrantize more virtual network appliances… Ingredients used in this guide: macOS Mojave (10.14) VMware Fusion 11 Pro Vagrant 2.2.2 VMware provider for Vagrant FortiGate-VM The FortiGate VM includes a limited embedded 15-day trial license that supports: 1 CPU maximum 1 GB RAM maximum Low encryption only (no HTTPS administrative access) All features except FortiGuard updates Steps 1. Download and unzip the FortiGate VM deployment package for VMware....

This post is a companion to the previous GNS3 with Microsoft Azure post. For many of us, an asymmetrical Internet connection usually equates to a much slower upload than download speed. Specifically, in our case, this results in a time-consuming process of uploading GNS3 image files to our remote gns3server VM instance. What if we need to recreate the disk attached to our gns3server VM instance? Modify the type (i....

Microsoft Azure is one of the big three public cloud computing providers for services such as virtual machines (VMs), containers, server-less computing, and machine learning. Azure is a large platform, but we’re focused solely on the Infrastructure as a Service (IaaS) resources in this guide. The GNS3 architecture is comprised of three primary components: User Interface (UI), Controller, and the (Compute) Server. The Server is the component that puts a strain on computer hardware resources....

Lately, I’ve been implementing a solution to make SSH connections more secure and manageable (i.e., getting away from password authentication). A couple of benefits public-key authentication has over the default password authentication is: Memorize only the passphrase of your private key rather than possibly dozens of username/password combinations for remote hosts. A password sent across the network, even protected by an SSH secure channel, can be captured when it arrives on the remote host if that host has been compromised....

I recently had to configure Inter-VLAN routing at a client’s site. I don’t have to perform this task on a regular basis, so I figured I would make a post of a sample implementation for future reference. Ingredients used for this post: Cisco 2811 Router Cisco Catalyst 3560 Cisco Catalyst 2950 Steps Configure the Corp router. enable conf t int fa 0/1 description Link_to_L3SW ip address 172.17.17.9 255.255.255.252 no shut end copy run start Configure the Cisco Catalyst 3560 switch....

This post is a guide to configure a Cisco Adaptive Security Appliance (ASA) device to perform remote access SSL VPN with the stand-alone Cisco AnyConnect VPN client. I followed a few tutorials on the web (including a couple of examples from the Cisco website), but I failed to implement a complete solution. The following recipe has been thoroughly tested and verified. Ingredients used for this post: Cisco 5500 Series ASA with software version 8....