D-Link DI-308 - Manual (Page 68)

DI-308 ISDN Remote Router
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Setting Local IP Addresses
When implementing NAT and thus creating a private network that is isolated from
the Internet, you can assign any IP addresses to host computers without problems.
However, the Internet Assigned Numbers Authority (IANA) has reserved the
following three blocks of IP Addresses specifically for private networks:
Class Beginning Address Ending Address
A 10.0.0.0 10.255.255.255
B 172.16.0.0 172.31.255.255
C 192.168.0.0 192.168.255.255
It is recommended that you choose local IP addresses for use with NAT from the
private network IP addresses in the above list. For more information on address
assignment, refer to RFC 1597, Address Allocation for Private Internets and RFC
1466, Guidelines for Management of IP Address Space.
NAT/NAPT
The first screen shows the complete NAT table that is defined by the network
manager: