4.2 Settings of the factory network
The configuration for the network interface, active protocols and firewall exceptions of the
company network are performed in the Settings of the Company Network window.
Setting Description
Gateway If this value is not empty, the host specified there
is
used as the
default gateway, which means that
all IP packets that cannot be directly assigned are
sent there for routing.
DNS server If DNS name servers are specified here (maximum
three), then they must
be used to resolve symbolic
host names, i.e. at most of the points where an IP
address is expected, a computer name can also
be used instead.
The name server setting is also sent to its DHCP
clients (TCU, PG) via the DHCP server of the NCU,
so that they can also work with symbolic names.
Time server Here you can specify up to three NTP servers
(UDP/123) that can be used by the NTPD on the
NCU for time synchronization.
Host name 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
Active protocols 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.
Firewall exceptions You can specify ports here that are to be enabled
in the external network interface.
● S7 communication (TCP/102)
Port for the S7 communication
● VNC access (TCP/5900)
Port for the VNC access
● Additional ports
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
Configuring the network
4.2 Settings of the factory network
SINUMERIK Operate
38 Commissioning Manual, 10/2015, 6FC5397-3DP40-5BA3
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