kafka 集群映射端口到外网，外网无法生产消息

有3台kafka

ip分别是内网ip

192.168.2.21 9092

192.168.2.22 9092

192.168.2.23 9092

另有一台同时接通了内网和互联网的机器
（内网ip 192.168.2.13，外网ip 172.50.63.1），

现在用这台机器做了端口映射，用的rinetd

0.0.0.0 9092 192.168.2.21 9092

0.0.0.0 9093 192.168.2.22 9092

0.0.0.0 9094 192.168.2.23 9092

然后在自己开发电脑上用java代码生产消息 topic=ffff

props.put("bootstrap.servers", "172.50.63.1:9092");

会产生如下报错

java.util.concurrent.ExecutionException: org.apache.kafka.common.errors.TimeoutException: Batch containing 1 record(s) expired due to timeout while requesting metadata from brokers for ffff-0
    at org.apache.kafka.clients.producer.internals.FutureRecordMetadata.valueOrError(FutureRecordMetadata.java:65)
    at org.apache.kafka.clients.producer.internals.FutureRecordMetadata.get(FutureRecordMetadata.java:52)
    at org.apache.kafka.clients.producer.internals.FutureRecordMetadata.get(FutureRecordMetadata.java:25)
    at Producer.run(Producer.java:140)
Caused by: org.apache.kafka.common.errors.TimeoutException: Batch containing 1 record(s) expired due to timeout while requesting metadata from brokers for ffff-0

这是我的kafka配置

listeners=PLAINTEXT://0.0.0.0:9092
advertised.listeners=PLAINTEXT://192.168.2.13:9092

现在的疑问是
这个配置应该写什么？才能让外网能够正常生产

advertised.listeners应该写互联网ip 172.50.63.1

还是做映射的那台内网ip 192.168.2.13

advertised.listeners应该写互联网ip 172.50.63.1