Siemens SINUMERIK 840DE sl Commissioning Manual page 390

Configuring the network
17.3 Settings of the factory network
Setting
Host name
Active protocols
Firewall exceptions
● S7 communication (TCP/102)
● VNC access (TCP/5900)
● Additional ports
NOTICE
Security risk
Note that opening the ports in the firewall can represent a security risk. Only enable the ports
that you actually require.
Note that every accessible service can have security gaps.
376
Description
Here you can define a name for the local host. This
manually assigned name takes priority over all oth‐
er names.
The host name is determined in the following order:
● This entry (identical to the host name from the
basesys.ini file)
● A name received from the DHCP server
(reverse DNS lookup, i.e. which name belongs
to the received IP address)
● Default name ("NONAME_...")
Because the host name is also used as DNS
name, it must satisfy the corresponding require‐
ments of the RFC:
● ASCII letters (a-z, A-Z), digits (0-9) and '-'
● maximum 63 characters
Specifies which protocols are to be used in the
company network. DCP (Discovery and Basic Con‐
figuration Protocol) and LLDP (Link Layer Discov‐
ery Protocol) are available for selection.
You can specify ports here that are to be enabled
in the external network interface.
Port for the S7 communication
Port for the VNC access
Any further ports can be enabled here. The entry
starts with the protocol name (TCP or UDP), fol‐
lowed by a slash '/' and the port number of the
service to be enabled. Several entries are separa‐
ted by a space.
Example (enabling of the VNC servers): TCP/
5900 TCP/5904 TCP/5905
Commissioning Manual, 12/2017, 6FC5397-1DP40-6BA1
SINUMERIK Operate (IM9)