get https://api.linode.com//linode/instances//interfaces
Beta This operation returns all interfaces assigned to a specific Linode. They list in the order they were created. On the Linode, interfaces also list in this order, and are typically named eth0, eth1, eth2, and so on. The MAC address is the most reliable method to identify an interface. This operation requires the read_only grant for the Linode. The Linode needs to use interfaces and not configuration profile interfaces. Run Get account settings to see if Linode interfaces are supported.
linode-cli linodes interfaces-list $linodeId
<https://techdocs.akamai.com/cloud-computing/docs/getting-started-with-the-linode-cli>
linodes:read_only
<https://techdocs.akamai.com/linode-api/reference/get-started#oauth>