An easy way to calculate NAT engine instances

Question

I assume that NAT support is already available with routing and network available in the computing engine? Looking for some easy-to-read documents and commands to set up a situation where one of the instances acts as a router, while other instances can use this to access the public Internet. Another scenario I'm looking for is how to make instances without an external IP address have access to the Internet. Is there a friendly way to gcutil script this?

Answer 1

It looks like you are looking for a collection of routes . In your first case, the examples should show you how one instance can act as a gateway for other instances by setting a route for internal nodes to use the gateway as the “next hop” for its traffic.

For your second scenario, there is a caveat that states that “Currently, any packets sent to the Internet should be sent by an instance that has an external IP address. If you create a route that sends packets to the Internet from a specific instance, this the instance must also have an external IP address. If you create a route that sends packets to the Internet gateway, but the original instance does not have an external IP address, the packet will be deleted. "