API ip-address post invalid address throws 500 error

[lampwins]

Issue type

[ ] Feature request
[ x ] Bug report
[ ] Documentation

Environment

• Python version: 3.5.4
• NetBox version: 2.3.3.

Description

When posting a new address to /ipam/ip-addresses/ providing an invalid address throws an HTTP 500 error. The API should return a better error in this case.

{ 
    "address": "123.456.789.111/32",
    "status": 1
}