Creating a static IP range results in an invalid syntax error

[MartinSpamer]

Expected Behaviour

• Given the valid json for a static IP range

{
	"StaticIPRange": {
		"reseller_id": 1,
		"prefix": "10.10.0.0",
		"prefix_length": 16,
		"inactive_retention_period": -1
	}
}

• When the json is POSTed to /static_ip_ranges

POST http://radius-dev-v3.uk.cxn-network.net/api/static_ip_ranges HTTP/1.1
Accept-Encoding: gzip,deflate
Content-Type: application/json
accept: application/json
Content-Length: 130
Host: radius-dev-v3.uk.cxn-network.net
Connection: Keep-Alive
User-Agent: Apache-HttpClient/4.1.1 (java 1.5)
Authorization: Basic bWFydGluOmNvbm5leGluMTIzNDU2


{
	"StaticIPRange": {
		"reseller_id": 1,
		"prefix": "10.10.0.0",
		"prefix_length": 16,
		"inactive_retention_period": -1
	}
}

Actual Behaviour

• HTTP status 200 is returned
• AND the response body includes the error
  {"Errors": {"syntax": "Invalid Syntax"}}

Expected Behaviour
If the request is invalid, the HTTP status should be 400 : (Bad Request)
If the request is valid, the content should contain:

{
	"StaticIPRange": {
		"reseller_id": 1,
		"prefix": "10.10.0.0",
		"prefix_length": 16,
		"inactive_retention_period": -1
	}
}