IPv4 Addresses
•
Class A –
1.0.0.0 to 126.255.255.255
–
126 large organizations (all gone)
•
Class B – 128.0.0.0 to 191.255.255.255
–
2
14
networks each with 2
16
hosts
•
Class C – 192.0.0.0 to 223.255.255.255
–
2
21
small networks , 255 hosts