Services Usethe MQTT broker service
IX20 User Guide
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To limit access to hosts connected through a specified interface on the IX20 device:
a. Click Interfaces.
b. For Add Interface, click .
c. For Interface, select the appropriate interface from the dropdown.
d. Click again to allow accessthrough additional interfaces.
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To limit access based on firewall zones:
a. Click Zones.
b. For Add Zone, click .
c. For Zone, select the appropriate firewall zonefrom the dropdown.
See Firewall configuration for information about firewall zones.
d. Click again to allow accessthrough additional firewall zones.
7. Click to toggle on Debugto write MQTT debug messages to the system log.
8. Click to toggle on Allow anonymous clientsto allow connectionsfrom clients that do not
provide a username.
9. By default, the MQTT broker will allow clientswithout client IDs to connect, and will generate a
client ID for them. To disable, click to toggle off Allow zero length client id.
10. Click to toggle on Use username as client id. When enabled, the broker will replace the client
IDwith the username, which will prevent one client from disconnecting another by using the
same client ID.
11. Add a client:
a. Click to expand Clients.
b. Click to add a client.
c. Typethe Username and Password for the client.
d. Add a topic to control this client'saccess to:
i. Click to expand Topic access control list.
ii. Click to add a topic.
iii. For Topic, type the topic. The signal level wildcard, +, and multi-level wildcard, #, are
supported.
iv. For Access, select the level of access that the client will have:
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Read
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Write
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Read/write
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