Hioki 3196 - Page 176

11.2 Control and Monitoring Using a LAN Interface
170
IP address
assignment
Because each device must have a unique address, IP addresses are
monitored by the RIR (Regional Internet Registry).
Usually, an ISP (internet service provider) is entrusted with the assign-
ment of IP addresses to businesses, alleviating users of that ISP from
any problems. Otherwise, certain IP addresses can be used freely
within a distinct, closed network, as defined by RFC1597, as follows:
10.0.0.0/8 10. 0. 0. 0 to 10.255.255.255
172.16.0.0/12 172. 16. 0. 0 to 172. 31.255.255
192.168.0.0/16 192.168. 0. 0 to 192.168.255.255
When using a cross cable to communicate on a locally between the
PC and this unit, or to communicate through a closed IP network,
select one of the addresses above.
However, addresses where the host portion bits are all “0” are used as
network addresses only to identify the network itself. Addresses where
the host portion bits are all “1” cannot be used as IP addresses
because they indicate all the hosts that exist on the network.
(Example: For an IP network that has a network address (192.168.1.0/
24):
The address 192.168.1.255 indicates all the devices that are con-
nected to 192.168.1.0/24.
Because 254 IP addresses (192.168.1.1 to 192.168.1.254, except
192.168.1.0 and 192.168.1.255) can be used on this network, up to
254 devices can be connected to the network.
Gateway The gateway is a device that connects different networks. On an IP
network, devices that connect different IP networks use a common
router. You must specify the router’s IP address as the gateway
address.
In the 3196, there is no gateway setting.
Host name With TCP/IP, individual devices are differentiated by their IP
addresses. However, IP addresses are hard to understand and difficult
to remember. Unlike IP addresses, a text string host name is assigned
and this is used instead of the IP address.
The IP address and host name are changed depending on the DNS
(Domain Name Server).
In the 3196, there is no host name setting.