MQTT - see the topic IP

Installation
1

Hi there all,
how can I have the topic IP for all topic messages please ?
I mean, I just want to see the IP of every client that send a topic

Thanks all
Denis

2

Afaik that’s not part of the message. You’ll have to use logging on the server and check there.

3

I just put this 2 lines on the conf. page of Mosquitto broker and then reload it
But I see nothing new on the topics.

log_type: all
log_dest: topic

How and where can I see every topic in some log file and how can I do in order to see the IP please ?

Thanks a lot for the help
Denis

4

log_dest topic means that all your logs will be sent to a topic. This is great if you’re actively looking for them, but, if you want historical information, a log file is better.

5

I also start mosquitto in verbose mode in the portainer console
in order to see Hassio MQTT docker using: mosquitto -v

But I can’t understand from where the msg. topic arrive
What I see is something like:

1609839882: Received PUBLISH from 5KX5TJ8psygKIlVqvzLZhI (d0, q0, r0, m0, ‘luce.garage/cmnd/POWER’, … (2 bytes))

But I don’t understand who is “5KX5TJ8psygKIlVqvzLZhI”
What I want in order to understand who is send a strange topic from some
home device is at last have the topic client IP.

Is there possibility to have that IP please ?

Thanks a lot for the help
Denis