Shulou(Shulou.com)06/01 Report--

IP address:

Ipv4- >

There are five types of addresses, which are Class A, Class B, Class C, Class D and Class E. only three types of ABC are useful to us, and the remaining two categories are used for research.

Class A: the first paragraph of IP is from 1-127,

Class B: the first paragraph of IP is from 127191.

Class C: the first paragraph of IP is from 192-223

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