Tag: Networking

Azure Extended network (“L2” – ish connections)

In November 2019 at the Microsoft Ignite conference there was a demo on how to extend your on-premises network to Azure. While embedded in a regular Azure session, one might think this allows you to do a L2 extension of your network into an Azure network, its actually not. Yes, you can have overlapping subnets […]

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Highly Available Firewalls and Proxies in Azure

New and old technology usually don’t work well together. Trying to connect your Betamax video player to an OLED screen may be a challenge. It will work, but how? The same principle applies to traditional firewall setups in the cloud. With the virtualization of the networking stack not all features available in physical networks are […]

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Enable/Disable Accelerated Networking on Azure VM’s part 2

In my previous post, I talked about using a custom script to redeploy VM’s with Accelerated networking enabled or disabled. The latest PowerShell cmd’lets however make things a lot easier and don’t require you to re-deploy the entire VM anymore. So, this post is a followup to the previous one and explains how to enable […]

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Azure P2S VPN with MFA

As Microsoft enabled the Radius option in the Azure Gateway VPN configuration, it now means you can enable MFA on your P2S connections! There is a caveat however. It only works if you have replicated your users from an Active Directory into Azure Active Directory. If you have cloud-only user, it doesn’t work (yet..) I’ll […]

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Enable/Disable Accelerated Networking on Azure VM’s

Microsoft Azure has the option to enable Accelerated Networking on VM’s. More information on the feature can be found here but this post is not to tell you about what good it does nor how it works.. no, this post is to introduce a new script that will enable/disable the function for you! update: it’s […]

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How to connect to Azure Services

When deploying services in Azure, the connection to those services is important. Some services might require public access, while for other services you want to have a more private connection.. this post goes into the different options.. and what to take into account when connecting to services deployed in Azure.. Within Azure there is a […]

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Highly Available Azure GW’s and Juniper SRX

Pretty quietly Azure has released the option of using redundant VPN connections. In this case, the gateway in Azure actually gets 2 external IP addresses that our on-premises Firewall can connect to. In this chapter, a small update on the Juniper SRX, BGP to Azure post. So that after following this guide, you can actually […]

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PowerBI Gateway and Proxies

The PowerBI Gateway can be used to connect on-premises database sources into PowerBI, Microsoft Flow, Logic Apps and PowerApps. The advantages are many, and if installed correctly it will work flawlessly. However, the default install of the connector is based on the gateway being able to connect directly to the internet. While it’s the fastest […]

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Redundant SRX Junos to Azure VPN with VNET Peering

Ever since playing with BGP I was looking for a way to make redundant tunnels. As the local internet provider here would only allow me a single IP address, I looked at the other side. What if we have two Azure regions that have a VPN tunnel to my SRX and between each other. Routing would be dealt with by BGP and thus, I should be able to connect to both VNET’s through each of the VPN tunnels.

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Azure Network Architectures (Marketplace FW's)

Many companies struggle with concepts of “cloud networks” and how it relates to their on-premises networks. How do you deploy a firewall in there, with multiple subnets? Do we need multiple VNET’s and what about those subnets? Well, this post is about what you actually need to understand prior to deploying 3rd party firewalls (and/or VNets) and how routing works inside a VNET, and finally the common mistake of comparing an Azure VNET to a Hyper-V/VMWare VNET.

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