IP Classes IP addresses of class A, B, C

IP is a communication protocol that is used from the smallest network of two devices to the global information network. An IP address is a unique identifier for a specific host (device) allocated in a specific network.

IP Address Recording

The address looks like a 32-bit number in the range from 0 to 4294967295. This suggests that throughout the Internet 4 . , . , , (8- ), . : 0290612, IP- 192.41.6.18. - , - 255. (, ) , ( ) . , , , ( ) IP-.

5 . . IP- E. 128 16 , 16384 64 2 256 . IP- D , . , 1111, .

IP-. .

IP- . :

, 2⁷, 2²⁴ . 0, IP- 0 127, , , . 127 , . 126.

3 ( 24 ). , 16 777 216 ( ). , , , 16 777 214 .

IP- b , 10. 16 . :

B 2¹⁴ (16384) 2¹⁶ . IP- B 128 191. , . , , , , 65 534.

IP- C 192 223, . :

110, 24 . 2²¹ ( 2097152 ). IP- 1 , 254 .

D 224. , , , – .

D 224.0.0.0 239.255.255.255. , , . 240.0.0.0 255.255.255.255. , IP- .

IP-

, , IP-. IP- . , , , . – .

0 127. , , , 127 ( ). , IP 127.0.0.1 , . , .

IP- , , IP-, . 1 126, , 128 191 – , 192 223 - .

, IP-, – , – . (). , IP- 139.17.54.23 , - 139 - 128 191. 139.17.0.0, – 54.23.

, , . , , IP- . , , .

IP- , . . , . , .

, – , IP-. IP- . , - 0 255. , . , 255.255.248.0 – , 255.248.255.0 – . 255.255.255.0 IP- .

, IP-. IP-, , , . .

, . , IP- 170.15.1.120 255.255.255.0 170.15.1.0, 255.255.0.0 170.15.0.0, . 170.15.0.0 .

IP-, . :

• 2^{( , )} - 2 = ;
• 2^{( )} - 2 = .

, , 182.16.52.10 255.255.224.0. : 11111111.11111111.11100000.00000000. , , . 23-2=6 213 - 2 = 8190 .

255.255.255.0 65534 . , 254. , . .

, . : 253 , 125 , 61 , 29 . .

, . 255.255.0.0, 65534 . 3 4 . 32, 64, 96, 128, 160 192.

, . 32 . , , 254. 16 , 65534 .

Of course, these are only approximate calculations. When creating sectors and working with subnets, it is necessary to take into account more factors that depend on the provider and the level of the enterprise.