Safety notices 
  2.1 Security recommendations 
SCALANCE XR-300WG 
Operating Instructions, 05/2017, C79000-G8976-C454-01 
15 
●  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"). 
The following list provides you with an overview of the open protocol ports. 
The table includes the following columns: 
● 
 
● 
 
● 
 
–  Open 
The port is always open and cannot be closed. 
–  Open (when configured) 
The port is open if it has been configured. 
● 
 
–  Open 
The factory setting of the port is "Open". 
–  Closed 
The factory setting of the port is "Closed". 
● 
 
Specifies whether or not the protocol is authenticated. 
● 
 
Specifies whether or not the transfer is encrypted. 
 
  TCP/23  Open (when con-
Open  Yes  No 
  TCP/22  Open (when con-
figured) 
Open  Yes  Yes 
  TCP/80  Open (when con-
Open  Yes  No 
  UDP/161  Open (when con-
Open  Yes  Yes (when config-
  UDP/34964, 
UDP/49154 - 
Open  Open  No  No