Siemens CP 1543-1 User Manual

Configuration, programming
4.1 Security recommendations
CP 1543-1
Operating Instructions, 05/2017, C79000-G8976-C289-07
33
Table: Meaning of the column titles and entries
The following table provides you with an overview of the open ports on this device.
●
Protocol / function
Protocols that the device supports.
●
Port number (protocol)
Port number assigned to the protocol.
●
Default of the port
– Open
The port is open at the start of the configuration.
– Closed
The port is closed at the start of the configuration.
●
Port status
– Open
The port is always open and cannot be closed.
– Open after configuration
The port is open if it has been configured.
– Open (login, when configured)
As default the port is open. After configuring the port, the communications partner
needs to log in.
– Open with block call
The port is only opened when a suitable program block is called.
●
Authentication
Specifies whether or not the protocol authenticates the communications partner during
access.
Protocol /
function
Port number (pro-
tocol)
Default of the port
Port status
Authentication
DHCP
68 (UDP) Open Open after configuration (only
outgoing)
No
DCP
93 (UDP)
Open
Open
No
DCE
135 (TCP) Open Open Yes, when security is
enabled.
S7 communica-
tion
102 (TCP) Open Open No
Online security
diagnostics
8448 (TCP) Closed Open after configuration
NTP
123 (UDP) Closed Open after configuration (only
outgoing)
No
HTTP
80 (TCP) Closed Open after configuration No
HTTPS
443 (TCP)
Closed
Open after configuration
Yes

Siemens CP 1543-1 Specifications

General

Brand	Siemens
Model	CP 1543-1
Category	Controller
Language	English