{
    "logging": {
        "level": "info",
        "log_file": "./natter.log"
    },
    "status_report": {
        "hook": "bash ./natter-hook.sh '{protocol}' '{inner_ip}' '{inner_port}' '{outer_ip}' '{outer_port}'",
        "status_file": "./natter-status.json"
    },
    "open_port": {
        "tcp": [
            "0.0.0.0:3456",
            "0.0.0.0:3457"
        ],
        "udp": [
            "0.0.0.0:3456",
            "0.0.0.0:3457"
        ]
    },
    "forward_port": {
        "tcp": [
            "127.0.0.1:22",
            "192.168.1.100:443"
        ],
        "udp": [
            "127.0.0.1:53",
            "192.168.1.100:51820"
        ]
    },
    "stun_server": {
        "tcp": [
            "fwa.lifesizecloud.com",
            "stun.isp.net.au",
            "stun.freeswitch.org",
            "stun.voip.blackberry.com",
            "stun.nextcloud.com",
            "stun.stunprotocol.org",
            "stun.sipnet.com",
            "stun.radiojar.com",
            "stun.sonetel.com",
            "stun.voipgate.com"
        ],
        "udp": [
            "stun.miwifi.com",
            "stun.qq.com"
        ]
    },
    "keep_alive": "www.qq.com"
}