My Compute Engine VM has no external IP. What do other servers see?

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My Google Cloud Compute Engine VM Instance claims to have no external IP address in the settings.

When I run the following code, I get an IP address.

response = requests.get('http://jsonip.com')
ip = response.json()['ip']
print('Your public IP is:', ip)

>>> Your public IP is: x.x.x.x  <-- Masking the IP address for security reasons

What address is returned? Is this just a non-static IP address?

1 Answers

The host is seeing the IP address for the Google Cloud NAT Gateway configured for the VPC. If a VPN is configured and is the default route, the host will see the router's IP address.

Google Cloud NAT Gateways use a static public IP address.

VPNs use whatever is configured and could be a single public static IP address or a group of IP addresses.

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