Post on 25-Dec-2015
Classful IP Addressing
192.168.2.100 192.168.3.100
192.168.1.100 192.168.2.101
IP Address Components
192.168.2.100 192.168.3.100
192.168.1.100 192.168.2.101
IP Address Components
Network 1 Network 2 Network 3
192.168.2.100 192.168.3.100
192.168.1.100 192.168.2.101
IP Address Components
192.168.1.100
IP Address Components
Network ID Host ID
192.168.1.
100
W X Y Z
192 168 1 100
IP Address Classes
W X Y Z
192 168 1 100
192 168 1 100
192 168 1 100
Class A
Class B
Class C
IP Address Classes
W X Y ZNetwor
k ID
Network ID
Network ID
Host ID
Host ID
Host ID
Class A
Class B
Class C
IP Address Classes
• Range of values of w = 1 – 126
• Used for very large networks
• Allows for 126 networks and 16,777,214 hosts per network
Network ID
Network ID
Host ID
Host ID
Network ID Host ID
Class A
Class B
Class C
W X Y Z
IP Address Classes
• Range of values of w = 128 – 191
• Used for medium to large networks
• Allows for 16,384 networks and 65,534 hosts per network
Network ID
Network ID
Host ID
Host ID
Network ID Host ID
Class A
Class B
Class C
W X Y Z
IP Address Classes
• Range of values of w = 192 – 223
• Used for small local area networks
• Allows for 2,097,152 networks and 254 hosts per network
Network ID
Network ID
Host ID
Host ID
Network ID Host ID
Class A
Class B
Class C
W X Y Z
Used for Multicasting
Reserved for Future Use
Class D
Class E
• Range of values of w = 224 – 239
• Range of values of w = 240 – 255
IP Address Classes
Network ID
Network ID
Host ID
Host ID
Network ID Host ID
Class A
Class B
Class C
W X Y Z
Used for Multicasting
Reserved for Future Use
Class D
Class E
IP Address Classes
Network ID
Network ID
Host ID
Host ID
Network ID Host ID
Class A
Class B
Class C
W X Y Z