Toa NX-300, Installation Setup Manual

Page: 165 / 183

6-3
Chapter 6
APPENDIX
1.2. Network Address Port Translation (NAPT)
Because the Internet cannot be accessed using the local IP address, the local IP address must be converted
into the global IP address by means of network address port translation (NAPT).
Internet
Router 2 Router 1
NX-300
(C)
NX-300
(A)
NX-300
(B)
LAN
1.3. IP Broadcast and Unit Scan
The IP broadcast communication method is used to scan the units connected to the network. Units can only be
scanned within the effective range of the IP broadcast.
The address to be used is 255.255.255.255.
IP broadcast does not reach beyond the router covering range even in the LAN.
NET1
NET2
Router
Router
NX-300
(C)
NX-300
(A)
NX-300
(B)
PC
n the above figure T represents the and T represents the effective range for broadcast. or
example if the is used to scan the units in the figure nit cannot be scanned even though it is located
within the same LAN.
Note
Consult a network administrator about the effective range of the IP broadcast.
The global address is used to connect nit to nit . t is then converted to nit s local address by
outer .
The NX-300 Setting Software is compatible with NAPT. To set a unit connected using NAPT, click the Enable
T chec box on the et or tab and enter the re uired items. See p. 3-28, "Network Settings." )