关于外网的服务通过路由器端口映射访问Rsocket-Broker的错误提示

[YJChen8688]

102.203.22.10（机房外网ip）---》路由器（端口映射了9999等）--》实体机（ip192.168.0.10、192.168.0.11等）；
有两个服务模块（A、B），都是直连接到Rsocket-broker。
A服务与Rsocket-broker处于同一局域网内，
B服务处于外网，与Rsocket-broker不在一个局域网；
当B服务通过102.203.22.10连接Rsocket-Broker，能连接，也能正常与A服务相互调用，但会提示以下错误：
2023-11-19 09:12:00.953 ERROR 27708 --- [actor-tcp-nio-2] c.a.r.loadbalance.LoadBalancedRSocket : RST-400500: Failed to connect URI: tcp://192.168.0.10:9999

io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection timed out: no further information: /192.168.0.10:9999
Caused by: java.net.ConnectException: Connection timed out: no further information
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) ~[na:1.8.0_211]
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717) ~[na:1.8.0_211]
at io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:337) ~[netty-transport-4.1.91.Final.jar:4.1.91.Final]
at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:334) ~[netty-transport-4.1.91.Final.jar:4.1.91.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:776) ~[netty-transport-4.1.91.Final.jar:4.1.91.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:724) ~[netty-transport-4.1.91.Final.jar:4.1.91.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:650) ~[netty-transport-4.1.91.Final.jar:4.1.91.Final]
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:562) ~[netty-transport-4.1.91.Final.jar:4.1.91.Final]
at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997) ~[netty-common-4.1.91.Final.jar:4.1.91.Final]
at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.1.91.Final.jar:4.1.91.Final]
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[netty-common-4.1.91.Final.jar:4.1.91.Final]
at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_211]

2023-11-19 09:12:00.962 ERROR 27708 --- [actor-tcp-nio-2] reactor.core.publisher.Operators : Operator called default onErrorDropped

而与Rsocket-Broker处于同一局域网的A服务不会有这个错误提示，请教如何解决这个问题。