Siemens SCALANCE M804PB Operating Instructions Manual page 14

Security recommendations
Protocol Protocol/port
number
TIA Portal Cloud TCP/9023
Connector
(variable)
SMTP TCP/25
HTTP proxy TCP/variable
14
Port status Default port
status
Open Open
(when configured)
Open Closed
(only outgoing)
Open Closed
(only outgoing)
Authentication
No
No
No
Operating Instructions, 07/2018, C79000-G8976-C496-01
Encryption
No
No
No
SCALANCE M804PB