9. IP ranges Class Address Range Supports Class A 1.0.0.1 to 126.255.255.254 Supports 16 million hosts on each of 127 networks. Class B 128.1.0.1 to 191.255.255.254 Supports 65,000 hosts on each of 16,000 networks. Class C 192.0.1.1 to 223.255.254.254 Supports 254 hosts on each of 2 million networks. Class D 224.0.0.0 to 239.255.255.255 Reserved for multicast groups. Class E 240.0.0.0 to 254.255.255.254 Reserved for future use, or Research and Development Purposes.
10. IP addresses are divided into classes A,B and C to define large, medium, and small networks.
12. How to Calculate Historical classful network architecture Class First octet in binary Range of first octet Network ID Host ID Number of networks Number of addresses A 0XXXXXXX 0 - 127 a b.c.d 2 7 = 128 2 24 -2 = 16,777,214 B 10XXXXXX 128 - 191 a.b c.d 2 14 = 16,384 2 16 -2 = 65,534 C 110XXXXX 192 - 223 a.b.c d 2 21 = 2,097,152 2 8 -2 = 254
If you want to connect to another computer, transfer files to or from another computer, or send an e-mail message, you first need to know where the other computer is - you need the computer's "address." An IP (Internet Protocol) address is an identifier for a particular machine on a particular network; it is part of a scheme to identify computers on the Internet. IP addresses are also referred to as IP numbers and Internet addresses
Which sections of the IP address represent the network and which sections represent the machine will depend on what "class" of IP address is assigned to a network. There are 5 classes of IP addresses: Class A, Class B, Class C, Class D, and Class E. Class A - supports 16 million hosts on each of 127 networks Class B - supports 65,000 hosts on each of 16,000 networks Class C - supports 254 hosts on each of 2 million networks
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