When customers need to connect outbound to the internet from their Azure infrastructures, Network Address Translation (NAT) gateway is the best way. NAT gateway is a zonal resource that is configured to subnets from the same virtual network, which means that it can be deployed to individual zones to allow outbound connectivity.
NAT gateway’s unique SNAT port allocation is beneficial to dynamic, scaling workloads connecting to several different destination endpoints over the internet. In this blog, we deep dive into the key aspects of NAT gateway’s SNAT port behavior that makes it the preferred solution for different outbound scenarios in Azure.
For many customers, making outbound connections to the internet from their virtual networks is a fundamental requirement of their Azure solution architectures. Luckily, Azure has just the solution for ensuring highly available and secure outbound connectivity to the internet: Virtual Network Network Address Translation. Virtual Network NAT, also known as NAT gateway, is a fully managed and highly resilient service that is easy to scale and specifically designed to handle large-scale and variable workloads.