Why Isn't My USG FLEX H Showing Proper Connection in Nebula Topology?

Zyxel_Kay

Scenario and Background

Network administrators may encounter challenges mapping device connections in Nebula topology with USG FLEX H firewalls. The primary issue stems from the Link Layer Discovery Protocol (LLDP), which is crucial for automatically discovering and visualizing network device relationships.

Solution

To resolve connectivity issues:

1. Access the USG FLEX H web configurator
2. Go to System > Advanced > Additional Features
3. Enable the LLDP function
4. Apply the configuration
   

More Information

• Nebula Control Center (NCC) USG FLEX H-Series Management Enhancements — Zyxel Community