Today I was looking at IPvlan on a docker container in Azure along a colleague, and we found that there are plenty of documentation and blogs out there that might be confusing when running this setup on Azure. What is this IPvlan thing, I hear you ask? Docker has a good explanation here, but let … Continue reading IPvlan with Docker in Azure
I often get asked about the differences between Azure Networking and a traditional, on-premises network. I have been hit with a flu the last few days, so I had some time to think about this, and I decided to start writing whatever thoughts were not actually the result of the fever. In this post I … Continue reading Azure Networking is not like your on-onprem network
If you are reading my blog you probably know what Virtual WAN and Azure Kubernetes Service are. You probably know as well that you can configure AKS so that egress traffic is sent through an Azure Firewall by using Azure routing as described in the article Control Egress Traffic in AKS. That article explains how … Continue reading Filtering AKS egress traffic with Virtual WAN
I have recently had a couple of recent conversations that have made me reconsider the way we traditionally implement the hub and spoke Virtual Network design in Azure, which has some limitations. The idea is to introduce a relatively simple but powerful modification to the design that achieves these objectives: TL,DR: The main modification introduced … Continue reading Azure Hub And Spoke 2.0
Some time ago I posted a blog commenting on a possible design for interconnecting multiple Azure regions by means of Network Virtual Appliances (NVAs) and the Azure Route Server (ARS), where I used an overlay tunnel between the NVAs with VXLAN as encap protocol. I have received multiple questions to whether it would be possible … Continue reading Multi-region design with Azure Route Server without an overlay
This is not a topology I would define as “best practice”, or one that I see in every Azure deployment out there, but I would certainly not describe it as exotic either. In this design, organizations want to leverage Azure as Internet breakout for their on-premises systems. Potentially because they do not have a good … Continue reading Azure as Internet breakout from on-premises with Route Server
Some times User-Defined Routes can cause traffic issues in Azure due to asymmetries, learn how to identify those problems and fix them!
If you are reading this, you probably already know what Azure Private Link is: a representation of a service such as Azure Storage, Azure SQL Database, Azure Application Service, or even some application running in a different Virtual Network, in your own Virtual Network with a private IP address of your own. This is a … Continue reading Filtering traffic to Private Endpoints with Azure Firewall