how do you add additional nics to a compute engine vm?

Question

how do I add a NIC to a compute engine instance? I need more then one NIC so I can build out an environment...I've looked all over and there is nothing on how to do it...

I know it's probably some API call through the SDK, but I have no idea, and I can't find anything on it.

EDIT: It's the rhel6 image. figured I should clarify.

score 2 · Answer 1 · answered Jun 24 '17 at 18:39

The question is probably old and a lot has changed since. Now it's definitely possible to add more nics to an instance but only at creation time (you can find a networking tab on the create instance page on the portal - corresponding rest api exists too). Each nic has to connect to a different virtual network, so you need to create more before creating the instance (if you don't have already).

score 1 · Answer 2 · answered May 14 '14 at 23:20

Do you need an external address or an internal address? If external, you can use gcutil to add an IP address to an existing instance. If internal, you can configure a static network address on the instance, and add a route entry to send traffic for that address to that instance.

score 0 · Answer 3 · answered Jun 03 '14 at 03:58

I was looking for similiar thing (to have a VM which runs Apache and nginx simultaneously on different IPs), but it seems like although you can have multiple networks (up to 5) in a project and each network can belong to multiple instances, you can not have more than one network per instance. From the documentation:

A project can contain multiple networks and each network can have multiple instances attached to it. [...] A network belongs to only one project and each instance can only belong to one network.

how do you add additional nics to a compute engine vm?

3 Answers3