{
  "log": { "level": "warn" },
  "inbounds": [
    {
      "type": "mixed",
      "tag": "mixed-in",
      "listen": "127.0.0.1",
      "listen_port": 7890
    }
  ],
  "outbounds": [
    { "type": "direct", "tag": "direct" }
  ],
  "route": {
    "auto_detect_interface": true,
    "rules": [
      {
        "inbound": "mixed-in",
        "action": "sniff",
        "timeout": "1s"
      },
      {
        "inbound": "mixed-in",
        "action": "resolve",
        "strategy": "prefer_ipv4"
      }
    ],
    "final": "direct"
  }
}