You may have a lot of doubts about residential IPs, such as: residential IPs are IP addresses assigned by the ISPs for our home use, so aren't these residential IPs all shared IPs?

First of all, let's understand the concept of IP address.IP address is a numerical address used to uniquely identify a device in the Internet. In our daily Internet surfing process, each device (such as computers, cell phones, cameras, etc.) will have a unique IP address, through the IP address, the devices can communicate with each other and transfer data normally.

So, for the special type of IP address, residential IP, how are they assigned?

I. Difference between Shared IP and Exclusive IP

Before we get into residential IPs, let's take a brief look at the difference between shared and exclusive IPs.

1. Shared IP: Also known as dynamic IP, it means that an IP address is assigned to different users at different time periods, and users use the same IP address by dynamic allocation. This method can save IP address resources and reduce network operation costs.

2. Exclusive IP: Also known as static IP, it means that an IP address is assigned exclusively to one user, and the user can use the IP address for a long time without any change. This method is suitable for scenarios that require stable use of IP addresses for a long time, such as enterprise servers, remote monitoring, etc.

II. How residential IP is allocated

Residential IP is a type of shared IP, so how is it assigned?

In most home networks, we usually use broadband access. The Internet Service Provider (ISP) assigns our home a public IP address, which is actually an address in a pool of IP address resources. When we go online, the ISP dynamically assigns a residential IP for our home network to use. When we close our Internet connection, this residential IP is reclaimed for use by other users.

For example, suppose you are using broadband Internet access and you have 3 computers and 2 cell phones in your home network. When you turn on the Internet connection, these devices will get an identical residential IP address, so they can communicate with each other and share resources. But when you close the network connection, this residential IP will be released, and the next time you connect to the network again, the system will reassign a residential IP to your devices.

In this way, ISPs can fully utilize their limited IP resources to provide Internet access to more users.

III. Problems with residential IP sharing

While residential IP is shared IP, that doesn't mean it doesn't have some issues.

1. Network performance issues: Since residential IPs are shared, some users use the same residential IP at the same time, which may lead to network congestion and slowdown. Especially during peak hours, the network load will increase, which may affect the user experience for scenarios that require heavy traffic transmission (e.g. online games, HD videos, etc.).

2. Security issues: Since residential IPs are dynamically assigned, certain miscreants may take advantage of this to carry out network attacks or abuse. For example, some spammers may utilize dynamically assigned residential IP addresses to send spam, which can pose a certain threat to network security.

面对这些问题，我们可以采取一些措施来解决。比如，网络服务提供商可以通过优化网络架构和增加带宽来改善网络性能。而对于安全性问题，我们可以使用防火、入侵检测等安全措施来保护网络安全。

Finally, we need to realize that residential IP is a kind of shared IP, which plays an important role in our daily Internet access. Although there will be some problems, as long as we use and manage it wisely, we believe that both the network service providers and us users can work together to create a better network environment.

Hopefully, through this article, you have gained a better understanding of residential IPs. When you go online again, perhaps you will have more respect for that shared residential IP address that opens the door to the wide world of the Internet.