Netgear FVS328 Manual De Referencia

Networks, Routing, and Firewall Basics

C-3

The five address classes are:

•

Class A

 

Class A addresses can have up to 16,777,214 hosts on a single network. They use an eight-bit 
network number and a 24-bit node number. Class A addresses are in this range: 

1.x.x.x to 126.x.x.x. 

•

Class B

 

Class B addresses can have up to 65,354 hosts on a network. A Class B address uses a 16-bit 
network number and a 16-bit node number. Class B addresses are in this range: 

128.1.x.x to 191.254.x.x. 

•

Class C

 

Class C addresses can have 254 hosts on a network. Class C addresses use 24 bits for the 
network address and eight bits for the node. They are in this range:

192.0.1.x to 223.255.254.x. 

•

Class D

 

Class D addresses are used for multicasts (messages sent to many hosts). Class D addresses are 
in this range:

224.0.0.0 to 239.255.255.255. 

•

Class E

 

Class E addresses are for experimental use. 

Class A

Network

Node

Class B

Class C

Network

Node

Network

Node