Alcatel Speed Touch Wireless, User Manual

Page: 198 / 362

11 Networking Services - IP
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3EC 17766 AAAA TCZZA Ed. 01
IANA (the Internet Assigned Number Authority), defined blocks of
IP addresses for private purposes:
Class
Type
From To Number of Network
Numbers
A 10.0.0.0 10.255.255.255 1
B 172.16.0.0 172.16.255.255 16 (Contiguous)
C 192.168.0.0 192.168.255.255 256 (Contiguous)
A Public IP address is an officially assigned IP address by an
Internet Registry and is guaranteed to be worldwide unique .
As a consequence the PC to which the address is assigned, has
worldwide Internet connectivity.
Public IP addresses are used by PC(s) that need global
connectivity, outside the enterprise, and/or with the Internet;
therefore these PC(s) require public IP addresses to be globally
unique.
You may not assign Public IP addresses yourself. If you need a
Public IP address or block of IP addresses, contact your Internet
Service Provider (ISP).
The ISP must in turn contact its upstream registry, or his
appropriate regional registry, e.g.: the American Registry for
Internet Numbers (ARIN) (http://www.arin.net).