The script *rrqnet-cron* is intended to be set up in *crontab*, by
a line such as the following:
----
-* * * * * /usr/local/sbin/rrqnet-cron tap0-client
+* * * * * /usr/sbin/rrqnet-cron tap0-client
----
By that *crontab* line, the script will be invoked every minute for