Astro Design PORTABLE SIGNAL GENERATOR PROGRAMMING SOFTWARE SP-8848 - Manual (Page 96)

2.13.3. Operation methods
Setting the port number and IP addresses
1) Select the serial settings in each of the text boxes under [Serial Setting].
2) Input the port number which is to be set in the [Port No] text box. Set the same port number for all the VGs connected
by LAN communication.
3) Input the IP address to be set in the [IP Address] text box. Set a different IP address for each VG.
4) Press the [Send] button. The port number and IP addresses are sent to the VGs.
2.13.4. General IP address classes
IP addresses fall into two categories, ones (global addresses) which are allocated to computers connected to the
Internet and ones (private addresses) which are used by LANs, etc.
Depending on the IP address, the following conventions apply to the private addresses used for LANs.
Class A
10.0.0.0 to 10.255.255.255
The number used for the 3-digit number in the first block is always "10," and it is followed by combinations of numbers
from 0 to 255. Use of this class of IP address enables up to 16 million computers to be connected by a single network.
Class B
172.16.0.0 to 172.31.255.255
The number used for the 3-digit number in the first block is always "172," and numbers from 16 to 31 are used for the
3-digit number in the second block. Use of this class of IP address enables up to 65,534 computers to be connected by
a single network.
Class C
192.168.0.0 to 192.168.255.255
The numbers used for the 3-digit number in the first two blocks are always "192.168," and numbers from 0 to 255 are
used for the 3-digit number in the third block. Numbers "0," "1" and "255" are not normally allocated as the 3-digit
number in the fourth block.
Use of this class of IP address enables up to 256 computers to be connected by a single network.
The IP addresses in class C are used to configure a LAN in an environment such as a small-scale office.
*IP address Class D also exists, but since the addresses in this class are special IP addresses used for multi-cast
communication, they should not be used.
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