A Magical IPV6 that is Assigned to Separate IP Address.

CCNA 200-301

CCNA 200-301

CCNP Enterprise

CCNP Enterprise

CCNP Security

CCNP Security

CCIE Enterprise Lab

CCIE Enterprise Lab

CCIE Security Lab

CCIE Security Lab

CCNP Service Provider

CCNP Service Provider

CCNP Data Center

CCNP Data Center

CCNP Collaboration

CCNP Collaboration

CCIE DC Lab

CCIE DC Lab

ic_r
ic_l
A Magical IPV6 that is Assigned to Separate IP Address.
images

Already a large number of people have used IPV6, and it is indeed a trend that is close to the eye, so SPOTO will introduce the IPV6.

First, what is ipv6?

Before we understand what ipv6, we have to understand why ipv6 will be released.

The weak electrician will ask first, do you have such troubles?

We use ipv4 now, the network used by our own home is not an independent IP address, you want to use an independent IP address to apply, not necessarily apply, why is this?

The reason is that IP resources are limited, the number of IP addresses is running out, and it is difficult for ordinary individuals to have their own independent IP network.

The main purpose of ipv6 popularization is to solve the problem of insufficient IP address resources.

Second, what exactly is IPV6? What is the difference between it and IPV4?

What is the biggest difference between IPv6 and IPv4? In fact, the number of IP addresses is different.

IPv6, as its name suggests, is the version 6 protocol for IP addresses. We are using IPv4 now, your current external network address may be such a string of numbers: 59.123.123.123. The total number is about 4.3 billion, and it is even less to subtract the 192 and 172 address segments dedicated to the intranet.

Since the address of the IPv4 protocol is 32 bits, the number of addresses it can provide is:

2^32-1 (about 4.3 billion)

But not all addresses are assigned, and some addresses are reserved for broadcast, testing, private network usage, and more. These addresses are called private addresses. So the actual address that can be allocated is about 4 billion.

In comparison, the current total population of the world has reached 7.5 billion. Even if the Earth people only give one IP address per person, the IPv4 address is far from enough. Moreover, in the era of the Internet of Things, the smart devices owned by each person can be more than One (bangle, wearable device, smart home, etc.).

IPv6 uses a 128-bit address compared to the 32-bit address used by IPv4:

For example, 1100000000000000000000000000011. According to the above calculation method, we can calculate the number of addresses that IPv6 can provide:

2^128-1 (about 340 trillion)

The IPV6 address is extremely rich and almost inexhaustible. It is said that every grain of sand on the earth can be assigned to its own address, not to mention that every mobile phone or computer can have its own unique IP address. I was tall at once.

Third, the role of ipv6?

There are tens of billions of devices in the world, but there are only more than 4 billion addresses. Since the Chinese Internet started late, it only shared 290 million IPs, so it was shared. Usually, there is nothing on the Internet, but it is very difficult to access a certain Internet device from the public network, such as viewing the camera at home or remotely controlling your own computer.

After switching to IPv6, each device can have a separate IP address. If combined with a 5G network, each car, street light, camera, mobile phone, trash can, fire hydrant can have a separate IP address. IPv6 rich address, all devices can be assigned to their own IP address, making the "Internet of Things" possible, all industries will benefit, as long as any device is assigned a separate IP address, then you can always With the control of the place, everything is connected.

That is what we call the connection of everything.

In addition to the extremely rich IP address resources, IPv6 is more secure and responsive.

IPv6 is more secure, with encryption options as standard, and communication between users and servers is hard to crack. In addition, IPv6 can greatly reduce the network delay, which can be reduced from single 100ms to single digits. Low network latency is not only helpful for playing games, but it also makes remote drones and unmanned cars feasible.

IPV6 circumvents the associated risk under shared IP conditions, that is, if other virtual host users on the same server are blocked due to attacks (such as DDOS), violations (such as yellow gambling), or policy disposition, they will not be implicated. Shared IP is that if a user has a problem, almost all users on the entire server will be affected, and this problem can only be solved by independent IP.