Mosquitto mqtt can't get it to work

[HenMus]

Not sure if someone can help me with this.
I installed mosquitto in a docker and everything looks file
This is what I read in the logfile

1671825240: mosquitto version 2.0.15 starting
1671825240: Config loaded from /mosquitto/config/mosquitto.conf.
1671825240: Opening ipv4 listen socket on port 1883.
1671825240: Opening ipv6 listen socket on port 1883.
1671825240: Opening ipv4 listen socket on port 9001.
1671825240: Opening ipv6 listen socket on port 9001.
1671825240: mosquitto version 2.0.15 running

this is the compose file

docker run \
 --name mosquitto \
 --net=bridge \
 -d \
 -p 1883:1883 \
 -p 9001:9001 \
  -v /volume1/docker/mosquitto/config:/mosquitto/config \
  -v /volume1/docker/mosquitto/data:/mosquitto/data \
  -v /volume1/docker/mosquitto/log:/mosquitto/log \
  --restart=always \
  eclipse-mosquitto:latest

when I want to connect with Openhab I get the following error

io.netty.channel.ConnectTimeoutException: connection timed out: /192.168.100.51:1883

Openhab 3.4.0.RC1 is running in a docker with IP address 192.168.100.90

[Matze0211 (Matthias)]

The first thing I would do is using in external mqtt client and try to connect.

By this you can identify if the issue is with openhab, that cannot connect as a client, or the issue is with your mqtt installation.

Depending on the results check the networking, if the IP & port is not blocked but accessable …

[matt_shepherd]

Im pretty sure port 9001 is reserved for log viewer. Im not sure if that is the problem?