What is a dynamic IP and what is a dynamic IP

Dynamic IP addresses are random IP addresses that are assigned when needed. Dynamic IP address and static IP address are corresponding, the so-called dynamic means that every time you go online, Telecom will randomly assign an IP address, static refers to the fixed allocation of an IP address, every time you use this address. Because IP address resources are very valuable, the IP addresses used by most users when surfing the Internet are dynamic, just like computers that access the Internet through modem, isdn, adsl, wired broadband, cell broadband, etc., are temporarily randomly assigned an IP address every time they go online.

An IP address is a 32-bit binary number of addresses, and theoretically, there are about 4 billion (2 to the 32nd power) possible address combinations, which seems like a large address space. Actually, according to....

With the popularity of the Internet, we are exposed to Internet-related things every day, and of course, we all know IP addresses. IP addresses are divided into static IP addresses and dynamic IP addresses, which correspond to each other. The so-called dynamic means that every time you surf the Internet, the operator will randomly assign an IP address, and static means that a fixed IP address is assigned to you.

In simple terms, a static IP is a permanent address assigned to a device, while a dynamic address is a temporary address that changes frequently. Let's take a look at the characteristics of dynamic IP.

1. What are the characteristics of dynamic IP?

Dynamic IP addresses change frequently, and each time a device connects to a network, the dynamic IP address changes. When a device tries to connect to the network, the DHCP server provides a dynamic address. When a user types a URL on a web browser, the DNS server maps the domain name to an IP address.

Overall, dynamic IP addressing is automatic, which makes it easier to manage the network.

Your IP address (dynamic IP address) will be extracted from the address pool and then assigned to you, instead of an IP address that belongs to you forever (static IP address). After a few days, weeks, or even months, this number is put back into the pool and you are assigned a new number.

Many users don't know which one to choose when choosing an IP address. For most users, the ease of use and flexibility of a dynamic IP address is the best. Because you don't need any extra settings to use dynamic IP addresses.

It also doesn't cost any extra money, and dynamic IPs are ideal for everyday internet users.

2. How to obtain a dynamic IP

Because IP address resources are very valuable, most users use dynamic IP addresses to surf the Internet, such as computers that access the Internet through modem, isdn, adsl, wired broadband, cell broadband, etc., are temporarily assigned an IP address every time they go online.

A dynamic IP address is an address obtained from a Dynamic Host Configuration Protocol (DHCP) server. It assigns dynamic IP addresses, subnet masks, default gateways, and DNS servers to the devices. In Microsoft computers, selecting the "Automatically get IP address" option in the network properties window will set up the device to get an IP address dynamically.

3. What is the general function of dynamic IP?

Nowadays, we need to work and study and even life, and its application scenarios are particularly wide, such as data capture, marketing promotion, account registration, etc., which can not only help us work efficiently, but also hide our real IP address and act as its network firewall to protect our network security.

We usually surf the Internet, most people use dynamic IP, because IP resources are scarce, dynamic IP can also meet our needs for surfing the Internet, and there are many jobs that require a large number of addresses.

Dynamic IP refers to the fact that every time you surf the Internet, the domain name you provide will be randomly assigned an IP address by the server, which is an address that often changes temporarily. The dynamic IP is an address obtained from the dynamic host configuration protocol server. The server assigns a dynamic IP address, subnet mask, default gateway, and DNS server to the device.

When an internet-enabled device tries to connect to the network, the server provides a dynamic address. So dynamic IP addressing is automatic, and it also makes it easier to manage the network.

The emergence of dynamic IP is to make up for the shortage of IP resources, because the assigned IP address is random, so it faces the problem of poor stability, which is easy to cause disconnection and network instability. But for some crawlers, random IP addresses are very helpful for their work, which can help break through the target limit and get more information.

What is a dynamic IP?

Dynamic IP (IP address) refers to the random assignment of IP addresses when needed.

The dynamic IP address corresponds to the static IP address, the so-called dynamic means that every time you surf the Internet, an IP address will be randomly assigned, and dynamic means that every time you are assigned an IP address, that is, this address is used every time.

Because IP address resources are very valuable, the IP addresses used by most users when surfing the Internet are dynamic, such as computers that access the Internet through modem, isdn, adsl, wired broadband, cell broadband, etc., are temporarily randomly assigned IP addresses every time they go online.

A 32-bit binary numeric IP address has about 4 billion (2 to the 32nd power) possible address combinations, which seems like a very large address space.

In fact, IP addresses can be divided into three types: A (7-bit network ID and 24-bit host ID), B (14-bit network ID and 16-bit host ID), C (21-bit network ID and 8-bit host ID), and due to historical reasons and different technological developments, IP addresses are almost all assigned, while the C(C) addresses that can be assigned to national organizations around the world are limited. Therefore, IP addresses are a very important web resource.

In most cases, the static IP address is still displayed after you disconnect from the network and reconnect, while the dynamic IP address changes after you disconnect and reconnect.

Dynamic IP is the corresponding to static IP, which means that when we need IP to surf the Internet, the operator will assign an IP address, that is, every time we connect to the network, a new IP address will be allocated.

The so-called dynamic static IP corresponds to the fact that the operator will only divide the address when we need to access the Internet, that is, every time we connect to the network, a new address will be assigned.

DHCP automatically assigns an IP. Just like the first few of your ID card, the last few digits will be issued to you in the same order.

All you need is a tool to modify the IP to complete the steps of modifying the IP.

Software """.Rabbit. Dynamic and static IP addresses

Install-Open-Select IP-Link - Complete the modification steps.

Very simple and fast means to change IP.

1. Improve the access speed: After browsing a website, the information on the browsed will be stored on the hard disk of the server. If you browse again, the information is available in the server at any time without having to reconnect to the remote server.

As a result, it saves bandwidth and speeds up browsing.

2. As a firewall: It can ensure the security of the LAN and serve as a firewall. For a LAN that uses a server, from the outside, only the server is visible, and other LAN users are not.

The server can also be used to restrict the blocking of IP addresses and prohibit users from viewing certain pages.

3. Network resource management: Some shared resources can be limited to users in specific areas to maintain regional resources.

The dynamic IP can be easily used without manual input by yourself.

It may be that many users still have a sense of dynamic IP and static IP and still stay on the concept of obtaining IP or fixed IP, so what is the difference between dynamic IP and static IP? Let me tell you more about it.

The static IP should be called a fixed IP, and the operator will tell you the corresponding mask and gateway if you give you a fixed IP, and then you can configure this IP in the local connection, so that when you boot up, there is one less process to obtain the IP, of course, you can ignore it. In fact, most of the fixed IP is used for external release servers, as we all know, we enter all ** when we play web pages, and the DNS server can know your server IP through **, so as to provide services, if you don't use a fixed IP, and let the server always get, then DNS will not know which IP to point your**, and it will not be able to provide services.

Impact of dynamic and static IP on network speed:

The speed provided by the ISP to each user is not limited by the IP address, but by the physical line that the user connects to the ISP. For example, the ISP opens up 4M bandwidth to Xiaoming's line, but opens 2M bandwidth to Xiaohong's line. But even if both Ming and Red use static IPs, Ming will have better Internet speeds than Red.

Therefore, from this actual situation, it can be known that the IP address has no impact on the network speed.

The static IP address assigned by the ISP

First of all, please forgive me for being a more serious person. It is not possible for an ISP to give away an IP address. To be precise, it should be said that the ISP leases the IP address to the user.

Because in the current situation where IPv4 addresses have been allocated and are severely scarce. It is not possible for an ISP to give away an IP address to a user.

The difference between a static IP address and a dynamic IP address

Why are there still users with static IPs, instead of everyone using dynamic IPs, to increase the flexibility of using IP addresses? Here's a word about DNS. However, in the online world, the transmission of data is based on IP addresses as the source and destination addresses, rather than a ** address.

At this time, the function of DNS is to translate the ** address into an IP address to facilitate the user's memory. So, in order not to update the DNS record frequently, the role of static IP addresses comes into play.

A dynamic IP is not a real IP address, the domain name you provide is dynamically assigned by the server so that users can surf the Internet if they can't remember the static IP address.

Static IP is an IP segment that can directly access the Internet, and the IP will be assigned an IP address to you when the ISP is installed, so that the computer will no longer automatically obtain the network address when connecting to the network, avoiding the trouble of network connection.

Static IP and dynamic IP are weaknesses for each other, when connecting to the rest of the network, you either need to change the IP address to automatically obtain or fix the IP address, but the impact is not big, please remember to back up the static IP address before setting, so that you can surf the Internet next time.

Dynamic IP address is an IP address that the operator dynamically allocates after the user dials in according to the allocation policy, which is generally used for home networks and small company networks. Generally, the broadband uses a dynamic IP address to access the Internet. When a user dials up to access the Internet, the DHCP server of the network operator will randomly assign a usable IP address to the user.

When a user disconnects, the IP address is used or reserved by other users, so the IP address usually changes when the user dials in again or restarts the router.

The advantage of using a static IP address is that the machine can be located in the network, and only the static IP can be used in general servers or enterprise networks. The IP address used to access the Internet will not change, no matter how the external network posture and space structure changes, it will not change with it, because the IPv4 address is now close to exhaustion, so the static IP address is more expensive.

Each has its own merits.

An IP address is a 32-bit binary number of addresses, and theoretically, there are about 4 billion (2 to the power of 32) possible address combinations, which seems to be a large address space. In fact, according to the rules of different bits of network ID and host ID, IP addresses can be divided into A (7-bit network ID and 24-bit host ID), B (14-bit network ID and 16-bit host ID), C (21-bit network ID and 8-bit host ID) three categories. Therefore, IP address is a very important network resource.

For an organization that has set up Internet services, because its host is open to the outside world to access services such as www, ftp, e-mail, etc., it is usually necessary to publish a fixed IP address to facilitate user access. Of course, digital IPs are not easy to remember and identify, and people are more accustomed to accessing the host through domain names, which still actually need to be translated into IP addresses by Domain Name Servers (DNS). For example, your homepage address is:

Users can easily memorize and use it, and the domain name servers will translate this domain name as, this is your real address online. For most dial-up Internet users, due to the discrete nature of their Internet access time and space, it is very undesirable to assign a fixed IP address (static IP) to each user, which will cause a great waste of IP address resources. Therefore, these users usually automatically get a dynamic IP address every time they dial the ISP's host, which is of course not arbitrary, but an address in the intersection between the network ID and the host ID applied by the ISP.

The dial-up user's IP address may be different when they connect twice, but the IP address will remain the same for each connection. Static IP: Dynamic IP is used in both the Internet and the LAN, and the IP format is the same. The IP in the Internet café is static.

Forever. Unless you take the initiative to apply for a replacement home Internet access. ADSL is also good.

Dialing is dynamic and is randomly assigned to you by telecommunications. And it's temporal. If you restart ADSL, it will change The LAN of the cell is basically a static IP