Siemens SIMATIC RF166C Operating Instructions Manual page 12

Security recommendations
List of available protocols
All available protocols and their ports that are used with SIMATIC RF166C are listed below.
Table 2- 1 List of available protocols
Service/ Protocol/
Protocol Port number
DHCP UDP/68
HTTP TCP/80
HTTPS TCP/443
NTP UDP/123
SNMP UDP/161
OPC UA TCP/4840
Syslog UDP/514
Explanation of the table:
● Authentication
Specifies whether authentication of the communication partner takes place.
● Encryption
Specifies whether the transfer is encrypted.
12
Preset port Port configura-
status ble
Open ✓
Open --
Open --
Closed ✓
Closed ✓
Open ✓
Open ✓
Port number Authentication
configurable
-- No
-- No
-- Yes
-- No
-- No
✓ Yes (simple,
when config-
ured)
-- No
Operating Instructions, 12/2019, C79000-G8976-C578-01
Encryption
No
No
Yes
No
No
Yes (when
configured)
No
SIMATIC RF166C