Examine the OSPF debug output :

The OSPF Hello packet debug output shows the Router ID as 0.0.0.112 .

It shows that the OSPF packet is being sent from 0.0.0.112 via port2:192.168.37.114 .

The OSPF Hello packet contains information such as the network mask ( 255.255.255.0 ), hello interval ( 10 ), router priority ( 1 ), dead interval ( 40 ), and designated router ( 192.168.37.114 ) and backup designated router ( 192.168.37.115 ).

Check the area configuration :

The area ID is shown as 0.0.0.0 , indicating that the two devices attempting adjacency are in area 0.0.0.0 .

Authentication mismatch :

The debug output indicates an "Authentication type mismatch". This means one device is configured to require authentication while the other is not.

Password configuration :

The statement claiming that "A password has been configured on the local OSPF router but is not shown in the output" is false because the output indicates an authentication mismatch, not the presence or absence of a password. The other statements are true based on the provided debug output.

References

Fortinet Network Security 7.2 Support Engineer Documentation

OSPF Configuration Guides

Conserve Mode Overview: Conserve mode is a state that FortiGate enters to protect itself from running out of memory. It is triggered when the memory usage reaches certain thresholds.

Thresholds: The default settings for conserve mode thresholds are:

Red Threshold: 88% memory usage.

Extreme Threshold: 95% memory usage.

Green Threshold: 82% memory usage.

Impact on Sessions: When in conserve mode:

New sessions requiring flow-based content inspection are blocked.

New sessions requiring proxy-based content inspection are also blocked to free up memory resources.

Current Memory State in Exhibit: The exhibit shows:

Total RAM: 3040 MB.

Memory used: 2706 MB (89% of total RAM).

Memory usage exceeds the red threshold (88%), thus triggering conserve mode.

Given that the memory usage is above the red threshold and conserve mode is active, the FortiGate will block new sessions requiring both flow-based and proxy-based content inspection to conserve memory.

References:

Fortinet Community: Explanation of Conserve Mode and Its Impact​ ( Welcome to the Fortinet Community! ) ​​ ( Welcome to the Fortinet Community! ) ​.

Fortinet Documentation: Conserve Mode Settings and Management​ ( Fortinet Docs ) ​.