前置机 
{
    "Debug": true,
    "Retries": 0,
    "ServeNodes": [
        "socks5://:23456",
        "udp://:23456"
    ],
    "ChainNodes": [
        "relay+tcp://BBBB:23456"
    ]
}

B-ixNat机 
{
    "Debug": true,
    "Retries": 0,
    "ServeNodes": [
      "relay+tcp://:23456"
    ],
   "ChainNodes": [
     "relay+tcp://CCCC:23456"
    ]
} 

C-落地鸡 
127.0.0.1:34567是ss的代理 
{
    "Debug": true,
    ...