Technical data

C-2 IP Addressing 90362-01
Figure B-1. Primary Internet Protocol (IP) Address Classes
Most Internet sites are assigned Class B or Class C addresses. Class B
addresses are for intermediate size networks that have between 256 and
65,536 hosts. Class C addresses are for networks with fewer than 256 hosts.
Hosts with multiple LAN connections must have an IP address assigned to
each LAN connection. Therefore, if your NetBlazer includes more than one
LAN interface connection, you must assign a unique IP address to each
LAN interface.
Assigning IP Addresses
IP addresses are 32-bit numbers most commonly represented as four
numbers joined by periods, for example 128.30.10.2. These addresses are
divided into four octets or 8-bit groupings (the 128, 30, 10, and 2 in the
previous example). For example, the 32–bit address 10000000 00011110
00001010 00000010 is written as 128.30.10.2 in the common “dotted
decimal” notation.
8 16 24 32
Class A 0
Class B 1 0
Class C
1 1 0
Class D 1 1 1 0
Class E
1 1 1 1 0
Net ID Host ID
Host ID
Host ID
Net ID
Net ID
Multicast Address
Reserved for future use
High order bits Low order bits