Timeout when trying to connect from another Docker server

Hello, I'm having some problems with my current server structure, the scenario I'm going through is as follows:

I have a Datacenter that uses Proxmox and the virtualized machines where the application is located and Kafka are different, I can connect via my computer without any problem (using sshtunnel), however on the application machine this is no longer possible (using or not) sshtunnel).

I can get the metrics normally, but when trying to send a message I get a timeout.

Follow the yml I'm using:

version: '3'
services:
  zookeeper:
    image: zookeeper:3.4.9
    hostname: zookeeper
    ports:
      - "2181:2181"
    environment:
      ZOO_MY_ID: 1
      ZOO_PORT: 2181
      ZOO_SERVERS: server.1=zookeeper:2888:3888
    restart: always
    volumes:
      - ./data/zookeeper/data:/data
      - ./data/zookeeper/datalog:/datalog

  kafka1:
    image: confluentinc/cp-kafka:5.3.0
    hostname: kafka1
    ports:
      - "9091:9091"
    restart: always
    environment:
      KAFKA_ADVERTISED_LISTENERS: LISTENER_DOCKER_INTERNAL://kafka1:19091,LISTENER_DOCKER_EXTERNAL://${DOCKER_HOST_IP:-127.0.0.1}:9091
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: LISTENER_DOCKER_INTERNAL:PLAINTEXT,LISTENER_DOCKER_EXTERNAL:PLAINTEXT
      KAFKA_INTER_BROKER_LISTENER_NAME: LISTENER_DOCKER_INTERNAL
      KAFKA_ZOOKEEPER_CONNECT: "zookeeper:2181"
      KAFKA_BROKER_ID: 1
      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
      KAFKA_LOG_RETENTION_HOURS: 6

    volumes:
      - ./data/kafka1/data:/var/lib/kafka/data
    depends_on:
      - zookeeper

  kafka2:
    image: confluentinc/cp-kafka:5.3.0
    hostname: kafka2
    ports:
      - "9092:9092"
    restart: always
    environment:
      KAFKA_ADVERTISED_LISTENERS: LISTENER_DOCKER_INTERNAL://kafka2:19092,LISTENER_DOCKER_EXTERNAL://${DOCKER_HOST_IP:-127.0.0.1}:9092
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: LISTENER_DOCKER_INTERNAL:PLAINTEXT,LISTENER_DOCKER_EXTERNAL:PLAINTEXT
      KAFKA_INTER_BROKER_LISTENER_NAME: LISTENER_DOCKER_INTERNAL
      KAFKA_ZOOKEEPER_CONNECT: "zookeeper:2181"
      KAFKA_BROKER_ID: 2
      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
      KAFKA_LOG_RETENTION_HOURS: 6

    volumes:
      - ./data/kafka2/data:/var/lib/kafka/data
    depends_on:
      - zookeeper

  kafka3:
    image: confluentinc/cp-kafka:5.3.0
    hostname: kafka3
    ports:
      - "9093:9093"
    restart: always
    environment:
      KAFKA_ADVERTISED_LISTENERS: LISTENER_DOCKER_INTERNAL://kafka3:19093,LISTENER_DOCKER_EXTERNAL://${DOCKER_HOST_IP:-127.0.0.1}:9093
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: LISTENER_DOCKER_INTERNAL:PLAINTEXT,LISTENER_DOCKER_EXTERNAL:PLAINTEXT
      KAFKA_INTER_BROKER_LISTENER_NAME: LISTENER_DOCKER_INTERNAL
      KAFKA_ZOOKEEPER_CONNECT: "zookeeper:2181"
      KAFKA_BROKER_ID: 3
      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
      KAFKA_LOG_RETENTION_HOURS: 6

    volumes:
      - ./data/kafka3/data:/var/lib/kafka/data
    depends_on:
      - zookeeper

  kafka4:
    image: confluentinc/cp-kafka:5.3.0
    hostname: kafka4
    ports:
      - "9094:9094"
    restart: always
    environment:
      KAFKA_ADVERTISED_LISTENERS: LISTENER_DOCKER_INTERNAL://kafka4:19094,LISTENER_DOCKER_EXTERNAL://${DOCKER_HOST_IP:-127.0.0.1}:9094
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: LISTENER_DOCKER_INTERNAL:PLAINTEXT,LISTENER_DOCKER_EXTERNAL:PLAINTEXT
      KAFKA_INTER_BROKER_LISTENER_NAME: LISTENER_DOCKER_INTERNAL
      KAFKA_ZOOKEEPER_CONNECT: "zookeeper:2181"
      KAFKA_BROKER_ID: 4
      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
      KAFKA_LOG_RETENTION_HOURS: 6

    volumes:
      - ./data/kafka4/data:/var/lib/kafka/data
    depends_on:
      - zookeeper

  kafka5:
    image: confluentinc/cp-kafka:5.3.0
    hostname: kafka5
    ports:
      - "9095:9095"
    restart: always
    environment:
      KAFKA_ADVERTISED_LISTENERS: LISTENER_DOCKER_INTERNAL://kafka5:19095,LISTENER_DOCKER_EXTERNAL://${DOCKER_HOST_IP:-127.0.0.1}:9095
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: LISTENER_DOCKER_INTERNAL:PLAINTEXT,LISTENER_DOCKER_EXTERNAL:PLAINTEXT
      KAFKA_INTER_BROKER_LISTENER_NAME: LISTENER_DOCKER_INTERNAL
      KAFKA_ZOOKEEPER_CONNECT: "zookeeper:2181"
      KAFKA_BROKER_ID: 5
      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
      KAFKA_LOG_RETENTION_HOURS: 6

    volumes:
      - ./data/kafka5/data:/var/lib/kafka/data
    depends_on:
      - zookeeper

  kafdrop:
    image: obsidiandynamics/kafdrop
    restart: "no"
    ports:
      - "9000:9000"
    restart: always
    environment:
      KAFKA_BROKERCONNECT: "kafka1:19091"
    depends_on:
      - kafka1
      - kafka2
      - kafka3
      - kafka4
      - kafka5

It is worth mentioning that both machines have a firewall disabled, as well as selinux. The ping between them works normally, like ssh, the only problem is running on ports related to kafka.

confluentinc / cp-docker-images

Timeout when trying to connect from another Docker server #892