wrote: Is this traffic being evaluated by any security policies, with a 'log' action? IIRC, the local firewall log gets log entries from both the 'firewall' (interface/loopback) filters as well as regular firewall policies in the 'security' stanza.
No, there are no log actions for 'accept' or 'permit' actions in the entire configuration. While I am inclined to believe you, I don't recall ever getting any data in the firewall log that was supposed to log from the security policies config, but maybe newer Junos changed that.