Siemens SIMATIC NET SCALANCE XM-400 - Page 16

Recommendations on network security
SCALANCE XM-400
16 Operating Instructions, 09/2018, C79000-G8976-C306-08
● Use the configuration options of the interfaces, e.g. the "Edge Type".
● Configure the receive ports so that they discard all untagged frames ("Tagged Frames
Only").
Available protocols
The following list provides you with an overview of the open protocol ports.
The table includes the following columns:
●
Protocol
●
Port
●
Default port status
– Open
The factory setting of the port is "Open".
– Closed
The factory setting of the port is "Closed".
●
Configurable port
– ✓
The port status can be changed.
– --
The port status cannot be changed.
●
Authentication
Specifies whether the communication partner is authenticated.
●
Encryption
Specifies whether or not the transfer is encrypted.
Protocol
Protocol/
Port number
Default port status
Configurable port
Authentication
Encryption
TELNET
TCP/23
Open
--
Yes
No
SSH
TCP/22 Open -- Yes Yes
HTTP
TCP/80
Open
--
Yes
No
HTTPS
TCP/443
Open
✓
Yes
Yes
SNMP
UDP/161 Open ✓ Yes Yes (when
configured)
SNTP
NTP
UDP/123 Closed ✓ No No
PROFINET
UDP/34964,
UDP/49154,
49155
Open -- No No