This writing to the log file, although minute, causes some CPU power. If this were exploited it could make one of our devices more vulnerable to a DDoS attack than if it were not logged, correct?
I’d say there are many more ways to exhaust the CPU than by writing to the disk once per minute. But if you want to avoid these log messages, set up the firewall so that it wouldn’t permit access to the service port from outside the address range.