Siemens SCALANCE X-300 Series Operating Instructions Manual page 20

Recommendations on network security
● Authentication
Specifies whether the communication partner is authenticated.
● Encryption
Specifies whether or not the transfer is encrypted.
Protocol
FTP
SSH
TELNET
HTTP
PROFINET IO
Service
HTTPS
DHCP
SNTP
NTP (secure)
SNMP
RADIUS
PROFINET IO
* These ports are assigned dynamically and can differ from the values specified here.
)
20
Port number Port status
TCP/21 Open
TCP/22 Open
TCP/23 Open
(when config‐
ured)
TCP/80 Open
(when config‐
ured)
TCP/84 Open
TCP/443 Open
UDP/68 Open
(when config‐
ured)
UDP/123 Open
(when config‐
ured)
UDP/161 Open
(when config‐
ured)
UDP/1812, Open
1813
UDP/34964 Open
(when config‐
UDP/49152,
ured)
49153 *
)
Factory setting Authentication
Open Yes
Open Yes
Open Yes
Open Yes
Open No
Open Yes
Open No
Closed No
Open Yes
Open Yes
Open No
Operating Instructions, 11/2019, A5E01113043-24
Encryption
No
Yes
Yes
No
No
Yes
No
No
Yes
Yes
(SNMPv3)
No
No
SCALANCE X-300