Troubleshooting Tip: Event logs display 'pppd is started' and 'pppd is exiting' even if there is no disconnect in PPPoE connection

[emalayan]

Description	This article describes that if noticing 'pppd is started' and 'pppd is exiting' on System Event Logs (Log & Report-> System Events)  even if there is no drop on PPPoE drops or disconnects.
Scope	Any FortiOS versions.
Solution	This is likely because of any unused interface with PPPoE as 'Addressing Mode'. To fix this on the GUI, go to Network -> Interfaces and look for the PPPoE interface that is not in use. Or use the following command on the CLI: show sys interface | grep -f pppoe Example output: To fix this, disable the unused interface by going to System-> Interface, 'right-click' on the interface in question, and 'Set Status' to 'Down', or it is possible to disable via CLI, below is an example command: config system interface     edit <interface name>         set status down     next end