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Newbee queston: unable to connect to broker using ip address. [message #1851257]

Thu, 31 March 2022 16:10

Eclipse User

Hello,

I am able to run the mosquitto_pub & mosquitto_sub examples as presented in the mosquitto.org/download page.

However all other ways to connect using IP addresses or via my Arduino PUB SUB lib fail.

Q1: Is there somewhere a "getting started" manual that explains the required steps to get the software operational in a windows environment? (including firewal & .conf) settings? (prevent newbee questions as mine :))

Q2: What could be the cause of failure connection in the following setup:
- config file:
listener 1883
allow_anonymous

mosquitto_pub -t 'test/topic' -m "hello world" => works properly.
mosquitto_pub -t 'test/topic' -m "hello world" -h 192.168.0.237 => works not.
mosquitto_pub -t 'test/topic' -m "hello world" -h '192.168.0.237' => works not.
mosquitto_pub -t 'test/topic' -m "hello world" -h "192.168.0.237" => works not.

(ip 192.168.0.237 is my ip, firewall is off)
Best regards,
Johi.

Re: Newbee queston: unable to connect to broker using ip address. [message #1851316 is a reply to message #1851257]

Sat, 02 April 2022 02:56

Eclipse User

Found the solution.
Mosquitto is not binding to NIC IP unless you specify

listener 1883
allow_anonymous true

In the configuration file
On top you need to start

Mosquitto -c config_file -v

-v is the verbose mode.
I hope this can help others trying to get mosquitto up and running.

[Updated on: Sat, 02 April 2022 02:57] by Moderator

Re: Newbee queston: unable to connect to broker using ip address. [message #1851661 is a reply to message #1851316]

Tue, 12 April 2022 02:57

Eclipse User

Hello, I have been using mosquitto from 7 years, It always worked . I used same installation and configuration process, applied above fix also yet I am unable to connect remotely. with localhost I can always connect.

I have opened firwall, tried re-installing os and mosquitto several times and spent a couple of hours before giving up.

I am now certain that there is something wrong with the version installing with apt-get.

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