understanding azure nat gateway inner working

This article is really good to get a deeper understanding how it works.

https://azure.microsoft.com/en-us/blog/dive-deep-into-nat-gateway-s-snat-port-behavior/

A few take away for me at least are

1. Nat gateway can be associated with multiple subnet. This means it can link more than a single subnet.

2. If you have a VM with public IP in that subnet. Incoming connection can go directly to the VM while all outgoing request flow out via Nat gateway.

3. Connection can be re-use if it goes into a different destination.

4. It can support up to 16 different IP.

mitzen