Chapter 19
Network Layer:
Logical Addressing
19.1
, 19-1 IPv4 ADDRESSES
An IPv4 address is a 32-bit address that uniquely and
universally defines the connection of a device (for
example, a computer or a router) to the Internet.
Topics discussed in this section:
Address Space
Notations
Classful Addressing
Classless Addressing
Network Address Translation (NAT)
19.2
, Note
An IPv4 address is 32 bits long.
19.3
, Note
The IPv4 addresses are unique
and universal.
19.4
Network Layer:
Logical Addressing
19.1
, 19-1 IPv4 ADDRESSES
An IPv4 address is a 32-bit address that uniquely and
universally defines the connection of a device (for
example, a computer or a router) to the Internet.
Topics discussed in this section:
Address Space
Notations
Classful Addressing
Classless Addressing
Network Address Translation (NAT)
19.2
, Note
An IPv4 address is 32 bits long.
19.3
, Note
The IPv4 addresses are unique
and universal.
19.4
