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

# devcie 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