Network-based---IP addressing

One, there are class addressing: the idea of classifying IP addresses according to strict boundaries is a class addressing.

For example, the A,b,c,d,e class address in the IP address is a class addressing.

Benefits: There is a class addressing the network number and host number is strictly separate, effectively using the address space

Cons: Strict classification, which affects the efficient use of the address, for example, it is possible to use a C-class address as long as the link interconnect address of two addresses.

Second, no class addressing: There is no strict distinction between network number and host number of digits, an IP address of the network number is interpreted as a prefix of a certain length.

Benefits: Efficient Use of address space, more in line with the actual use of address space truth. and flexibility, such as a Class A Class A address can be divided into a number of small address allocation to the organization, multiple C-class addresses can also be synthesized a large block address.

No-class inter-domain routing: an address that is aggregated as such without class addressing to save the way that Internet-connected router resources are used.

Note:

650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M00/5A/1E/wKiom1T2u9WjBSmaAAFzlmsaDLA370.jpg "title=" 1.png " alt= "wkiom1t2u9wjbsmaaafzlmsadla370.jpg"/> Private address segment:

10.0.0.0 to 10.255.255.255

172.16.0.0 to 172.31.255.255

192.168.0.0 to 192.168.255.255

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Network-based---IP addressing