Ask what the numbers in your computer s IP address mean

The IP address is the code name of your computer network, just like your house number, each one is different from each one.

Called an IP address, an IP address is a 32-bit binary number that connects a computer to the Internet

The Internet Protocol address, which is the Internet host.

A numeric identifier that is usually represented by decimal numbers separated by decimal points, such as, but in fact this is not the case. IP address by.

The network identity (netID) and the host identity (hostID) are composed of two parts, and the network identity is used to distinguish the various networks and hosts interconnected on the Internet.

Identities are used to distinguish between different computers (i.e., hosts) on the same network.

An IP address consists of 4 parts of numbers, each of which is no larger than 256, separated by a decimal point.

1. The representation of the IP address.

IP address = network number.

The IP address is the basis for data transmission in the IP network, which identifies a connection in the IP network, and a host can have multiple IP addresses. The IP address in the IP packet remains the same in the network transmission.

Basic address format.

IP address = host address subnet address host address.

Network addresses are uniformly assigned by the Internet Authority (Internic) to ensure the global uniqueness of network addresses. Host addresses are assigned by the system administrators of each network. Therefore, the uniqueness of the network address and the uniqueness of the host address within the network ensure the global uniqueness of the IP address.

Assignment of reserved addresses.

Depending on the purpose and level of security, IP addresses can also be broadly divided into two categories: public and private. Public addresses are used in the Internet and can be accessed at will in the Internet.

Private addresses can only be used in the internal network and can only communicate with the Internet through a **server.

In order for an organization or network to connect to the Internet, it must apply for a public IP address. However, taking into account special circumstances such as network security and internal experiments, three areas are specially reserved as private addresses in the IP address, and their address ranges are as follows:::

Networks that use reserved addresses can only communicate internally and cannot be interconnected with other networks. Because reserved addresses in this network may also be used by other networks, if the network is interconnected, there will be problems when finding routes because the addresses are not unique. However, these networks that use reserved addresses can be interconnected to external networks by translating reserved addresses within the network into public addresses.

This is also one of the important ways to ensure network security.

Classless Inter-Domain Routing (CIDR).

As the number of hosts connected to the Internet increases exponentially every year, the Internet faces crises such as lack of Class B addresses, routing tables**, and exhaustion of entire addresses. Classless Inter-Domain Routing (CIDR) is a straightforward solution developed to address these problems, giving the Internet enough time to wait for a new generation of IP protocols.

According to the CIDR policy, the lack of Class B addresses can be solved by applying for several Class C addresses instead of applying for a single Class B address. The assigned C-type addresses are not random, but continuous, and they have the same highest bit, that is, they have the same prefix, so the routing table only needs to use a table entry to represent a set of network addresses, which is called "routing table clustering".

In addition, in addition to the "routing table clustering" measure, each ISP can obtain a section of address space from Internic and then assign those addresses to users.

Software Name:Rabbit! Sub-dynamic IPSoftware language: Chinese simplified.

Software category: Network Acceleration.

Operating environment: WinXP Vista Win7 Win8 Win10 mobile phone.