Firewall requirements

The following ports and addresses should be open in the firewall.

# backend communication
HTTPS  (443/TCP)  			nedap-harmony.com

# error logging
HTTPS  (443/TCP)  			http-intake.logs.datadoghq.eu

# time-synchronisation
NTP    (123/UDP)  			time.google.com

# device firmware update (Impinj, Zebra)
FTPS	 (21/TCP)   			device-fw-update.nedap-harmony.com
SFTP	 (22/TCP)   			device-fw-update.nedap-harmony.com
FTPS	 (8192-8200/TCP)  device-fw-update.nedap-harmony.com