What's the difference between VPN and VPC peering?

VPN
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What’s the difference between VPN and VPC peering?

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VPCs are within Google Cloud. VPNs are used for securing connections outside it.

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VPC Peering - connect 2 vpc’s within Google Cloud.

VPN - connect Google Cloud VPC to an external network. it can be your own office, Datacenter, AWS environment and another Google Cloud VPC (it a stupid idea, but it’s possible).

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Thanks for all.

It’s resolved. I understood.

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It is not that stupid. Peerings have downsides as sharing the object count towards limits and not allowing transitive traffic. It makes sense some times to connect VPC with cloud VPN