Table 3-4 Private Ip Address Ranges - Nortel Contivity 221 User Manual

3-8 Wizard Setup
Table 3-3 PPPoE Encapsulation
LABEL
Connection
Idle Timeout Type the time in seconds that elapses before the router automatically disconnects from
the PPPoE server. The default time is 100 seconds.
Next Click Next to continue.
Back Click Back to return to the previous screen.
Wizard Setup: Screen 3
3.4
The third wizard screen allows you to configure WAN IP address assignment, DNS server address
assignment and the WAN MAC address.
3.4.1 WAN IP Address Assignment
Every computer on the Internet must have a unique IP address. If your networks are isolated from
the Internet, for instance, only between your two branch offices, you can assign any IP addresses to
the hosts without problems. However, the Internet Assigned Numbers Authority (IANA) has
reserved the following three blocks of IP addresses specifically for private networks.

Table 3-4 Private IP Address Ranges

You can obtain your IP address from the IANA, from an ISP or have it assigned by a private
network. If you belong to a small organization and your Internet access is through an ISP, the ISP
can provide you with the Internet addresses for your local networks. On the other hand, if you are
part of a much larger organization, you should consult your network administrator for the
appropriate IP addresses.
317517-A Rev 00
DESCRIPTION
10.0.0.0 - 10.255.255.255
172.16.0.0 - 172.31.255.255
192.168.0.0 - 192.168.255.255