Siemens SIMATIC NET CP 443-1 Advanced Manual page 66

Configuration and operation
6.1 Security recommendations
Service/ Protocol/
Protocol port number
PROFINET CM UDP/34964
PROFINET-RPC 2x UDP/552xx
PROFINET-PN-EPM
PROFINET-CBA TCP/135
RPC
Explanation for table:
● Service/Protocol
Protocols that the device supports.
● Protocol/port number
Port number assigned to the protocol.
● Default port status
– Open
– Closed
● Configurable port
–
– --
● Authentication
Specifies whether the communication partner is authenticated.
● Encryption
Specifies whether the transfer is encrypted.
Ports of communication partners and routers
Make sure that you enable the required client ports in the corresponding firewall on the
communications partners and in intermediary routers.
These can be:
● DHCP / 67, 68 (UDP)
● DNS / 53 (UDP)
● NTP / 123 (UDP)
● SMTP / SMTP (STARTTLS) / 25 (TCP) - Open in CP on block call (outgoing only)
● FTPS / 20, 21 (TCP)
● Syslog / 514 (UDP)
66
Default port
status
Open
Open
Closed
The port is open at the start of the configuration.
The port is closed at the start of the configuration.
✓
The port can be configured.
The port cannot be configured
Configurable Authentication
Service Port
-- -- No
-- -- No
-- -- No
Manual, 03/2019, C79000-G8976-C256-05
Encryption
No
No
No
CP 443-1 Advanced (GX30)