JUMO 705001 mTRON T - Central Processing Unit Operating Manual - Manual (Page 134)

10 Online parameters
134
DHCP
IP-address
Subnet mask
The subnet mask determines which part of the IP address indicates the network and which part
is available for addressing a device within a network. The length of the mask is 32 bits (IPv4),
which is the same length as an IP address.
Example: in a network with a mask of 255.255.255.0, the first 24 bits (from left) are used for the
network address; these are set to "1" in the mask. The remaining 8 bits are set to "0" in the
mask and can be used for device addresses. There are therefore 254 device addresses avail-
able (256 - 2 because the network has assigned itself the address "0" and the address 256 is
used for broadcast).
Standard gateway
All network requests to addresses that do not belong to the relevant network are routed through
the standard gateway.
DNS device
name TYP705001-000cd8095337
Admissible characters:
a to z, A to Z, -, 0 to 9 (max. 63 charac-
ters);
name must start with a letter and must
not end with "-" (hyphen).
Example of unique DNS device name
for central processing unit (assigned by
default)
If necessary, the name can also be
assigned individually, but it must be
unique.
DNS-server 0.0.0.0 to 255.255.255.255 IP address of DNS server
The IP address may need to be
requested by the responsible adminis-
trator.
Transfer rate Automatic
10 Mbit/s half duplex
10 Mbit/s full duplex
100 Mbit/s half duplex
100 Mbit/s full duplex
Data transfer rate of Ethernet connec-
tion
Parameter Selection/settings Description
?
?
NOTE!
Changes to the configuration do not take effect until after a system restart.
NOTE!
If applicable, deactivate the DHCP to ensure that the central processing unit uses a fixed IP
address.
NOTE!
The IP addresses for the Ethernet and the system bus must not be in the same subnet.