National Instruments ENET-232 Series, Руководство пользователя

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Choosing a Static IP Address
For a Network Administered by a Network Administrator
If you are adding the serial ENET interface to an existing Ethernet
network, you must choose IP addresses carefully. Contact your network
administrator to obtain an appropriate static IP address for your serial
ENET interface. Also, have the network administrator assign the proper
subnet mask, gateway, and DNS server addresses.
For a Network without a Network Administrator
If you are assembling your own small Ethernet network, you can choose
your own IP addresses. The subnet mask determines the IP address
format. You should use the same subnet mask as the computer you are
using to configure your serial ENET interface. If your subnet mask is
255.255.255.0 , the first three numbers in every IP address on the network
must be the same. If your subnet mask is
255.255.0.0
, only the first two
numbers in the IP addresses on the network must match.
For either subnet mask, numbers between 1 and 254 are valid choices
for the last number of the IP address. Numbers between 0 and 255 are
valid for the third number of the IP address, but this number must be the
same as other devices on your network if your subnet mask is
255.255.255.0
.
If you are setting up your own network, you probably do not have a
gateway or DNS server, so you should set these values to
0.0.0.0
.