Thoughts from the clouds
Azure Virtual WAN is one of the networking options offered by Azure, and routing inside of Virtual WAN has become a sort of dark art with the many supported options. Some years ago Routing Intent (also known as Routing Policies) was introduced to simplify routing, but at times you need to go back to the … Continue reading Virtual WAN static routes redistribution
This post will explore the new support in Azure Application Gateway for Containers (AGC) for Web Application Firewall (WAF) as documented in https://aka.ms/agc/waf. This blog is part of a series: Before we start, kudos need to go to the great Christof Claessens, author of this extremely useful Azure Monitor Workbook to triage WAF logs. Is WAF a big … Continue reading Application Gateway for Containers: Web Application Firewall support (5)
After a good while without posting anything, I finally decided to slowly recommence again. This first post is about a little BGP trick that may help you increase the scale of Azure Route Server. Typically the maximum number of 8 BGP peers should be enough for most designs, but if you happen to need to … Continue reading Going beyond 8 peers in Azure Route Server
In my recent blog series Private Link reality bites I briefly mentioned the possibility of inspecting Service Endpoints with Azure Firewall, and many have asked for more details on that configuration. Here we go! First things first: what the heck am I talking about? Most Azure services such as Azure Storage, Azure SQL and many … Continue reading Azure Firewall and Service Endpoints
Welcome to the sixth post in the Private Link Reality Bites series! Before we begin, let me recap the existing episodes of the series: This question is as old as Private Link itself. Countless blog posts have already been written about it, not to mention this brief answer in the Private Link FAQ. Still, there are some … Continue reading Private Link reality bites – service endpoints vs private link
Welcome to the third post in the Private Link Reality Bites series! Before we begin, let me recap the existing episodes of the series: Big shoutout here to my esteemed colleague and oracle for Azure Networking Daniel Mauser. If you don’t know his GitHub site, make sure you check it out! Thanks as well to … Continue reading Private Link reality bites: what’s my source IP?
Welcome to this new series of blog posts in which I will be explaining some not-so-well-known facts about Azure Private Link and some associated technologies! This idea is born from the fact that I have been helping some colleagues and customers lately with some questions around Private Link, and that has made me realize that … Continue reading Private Link reality bites – Private endpoints are an illusion
In Azure you have two main ways of managing your virtual network connectivity: self-managed hub-and-spoke and Virtual WAN. Virtual WAN is a solution where Microsoft manages part of your virtual networks for you, and in exchange it gives you some benefits such as any-to-any routing out of the box. However, what if you need that … Continue reading Interregional traffic in hub-and-spoke
This one is going to be quick. The question is the following: if you have an Network Security Group rule in Azure that matches any protocol, but a specific TCP or UDP port number, what is the effect? Would protocols such as ICMP be matched as well? To verify this I have this NSG: If … Continue reading NSG: any protocol, specific port?
First of all, my apologies for the radio silence, there have been some private projects going on during the Summer months that have kept me away from blogging. With that out of the way: what the heck is subnet peering? You probably know VNet peering, but is “subnet peering” now a thing? Well, not yet, … Continue reading Azure Subnet Peering
Cloudtrooper 