MQTT Handson on IPv6 Network

To use MQTT on IPv6 network using Ubuntu, simply by installing mosquitto. Mosquitto already support IPv6

sudo apt install mosquitto

For Subcriber and Publisher install mosquitto clients on the desired host by executing,

sudo apt install mosquitto-clients

Publishing data is done by running, (assuming broker is in the same host)

mosquitto_pub -h ::1 -t test/test2 -m "lalala"

if broker IPv6 address is using link-local address, add interface information in the -h parameter,

mosquitto_pub -h fe80::a720:4523:e847:9e52%wlan0 -t test/test2 -m "lalala"

Parameter in subscribing on a IPv6 Broker is about the same, like so

mosquitto_sub -h fe80::a720:4523:e847:9e52%wlan0 -t test/test2