Siemens SCALANCE M800 Operating Instructions Manual page 12

Security recommendations
● Factory setting
– Open
– Closed
● Authentication
Specifies whether or not the protocol is authenticated during access.
Protocol Protocol/port
number
SSH TCP/22
SFTP
HTTP TCP/80
HTTPS TCP/443
SNTP UDP/123
SNMP v1/v3 UDP/161
DNS server TCP/53
DNS client UDP/53
Syslog UDP/514
IPsec/IKE UDP/500
UDP/4500
DHCP server UDP/67
DHCP Client UDP/68
NTP client UDP/123
NTP server UDP/123
Siemens Remote TCP/443
Service
(cRSP/SRS)
PROFINET UDP/34964
OpenVPN to TCP, UDP
SINEMA RC depending
on server
config [only
with Key-
Plug]
12
The factory setting of the port is "Open".
The factory setting of the port is "Closed".
Port status
Open
(when configured)
Open
(when configured)
Open
Open
(only outgoing)
Open
(when configured)
Open
(when configured)
Open
(when configured)
Open
(only outgoing)
Open
(when configured)
Open
(when configured)
Open
(when configured)
Open
(only outgoing)
Open
Open
(only outgoing)
Open
Open
(only outgoing)
Default port status
Local access External
access
Open Closed
Open Closed
Open Closed
Closed Closed
Open Closed
Open Closed
Open Closed
Closed Closed
Closed Open
Open Closed
Open Closed
Closed Closed
Closed Closed
Closed Closed
Open Open
Closed Closed
Operating Instructions, 08/2018, C79000-G8976-C331-08
Authentication Encryption
Yes Yes
Yes No
Yes Yes
No No
Yes Yes (when con-
figured)
No No
No No
No No
Yes Yes
No No
No No
No No
No No
Yes Yes
No No
Yes Yes
SCALANCE M874, M876