curl -i -X POST 'http://localhost:8000/v1/projects/a1e920ca-338a-4e9f-b363-aa607b09dd80/qemu/vms/d378a8bd-711d-47b1-aaa0-dfa0c3ff420b/adapters/1/ports/0/nio' -d '{"ethernet_device": "eth0", "type": "nio_generic_ethernet"}'

POST /v1/projects/a1e920ca-338a-4e9f-b363-aa607b09dd80/qemu/vms/d378a8bd-711d-47b1-aaa0-dfa0c3ff420b/adapters/1/ports/0/nio HTTP/1.1
{
    "ethernet_device": "eth0",
    "type": "nio_generic_ethernet"
}


HTTP/1.1 409
CONNECTION: keep-alive
CONTENT-LENGTH: 89
CONTENT-TYPE: application/json
DATE: Thu, 08 Jan 2015 16:09:15 GMT
SERVER: Python/3.4 GNS3/1.4.0.dev1
X-ROUTE: /v1/projects/{project_id}/qemu/vms/{vm_id}/adapters/{adapter_number:\d+}/ports/{port_number:\d+}/nio

{
    "message": "NIO of type nio_generic_ethernet is not supported",
    "status": 409
}