The Forgotten Cost of Microsoft Azure Networks

We all know cloud services cost money, that’s a no brainer because we are consuming resources in somebody else’s environments, but what happens when you forget about it?

I was looking at my Microsoft Azure subscription today to see how I was doing for billing this month and the bill was higher than I expected. When I looked through the consumption charts in the Account Portal, I was shocked to see £20 of consumption against the Azure Network Gateway. Sometime ago, I had configured the Azure Network Site-to-Site VPN to test the feature against my ASA firewall at home. Once I had played with it for a while and verified I had a good configuration, I disabled the IPsec tunnel at my end as there was no point in keeping the connection up for the sake of it.

Problem was, I forgot about the Azure VPN Gateway which is a required item to enable the Site-to-Site VPN to function. I had accidentally left it running, consuming resources as it pleased without me actually reaping the service it offered.

Azure Gateway Hours

Sure, the cost is not significant, but it’s still a cost I’d rather avoid as I’m sure anyone out there paying up for cloud services would avoid. Money for nothing as Dire Straits famously said.

Needless to say, the VPN Gateway is now deleted and when the time comes that I want to use the Site-to-Site VPN, I’ll need to redeploy it and re-configure the Pre-Shared Key and IP Address for the tunnel endpoint on my ASA but that’s worth doing for a £20 a month saving on my Azure bill. Let this be a lesson to us all. Remember what you deploy and remember to clean-up after yourself when you’re finished with it.