web/config.json.default

{
    "gui-ip" : "0.0.0.0",
    "gui-port" : 9000,
    "onos-ip" : "localhost",
    "onos-port" : 8080,
    "controllers": [
        "onos-vm1", 
        "onos-vm2", 
        "onos-vm3", 
        "onos-vm4"
    ]
}