What is the main difference between IPv4 and IPv6?

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asked Sep 4, 2019 in Electron Microscopy by freemexy (47,810 points)

What is the biggest difference between ipv6 and ipv4?In fact, that's the number of IP addresses.
IPv6 is the version 6 protocol for IP addresses.What we are using now is IPv4.Your network address can be a sequence of numbers like the following: 59,123,123,123.The IPv4 address is 32 bits, the total is 4.3 billion, and it is lower when the intranet 192 and 170 address segments are subtracted.The IPv6 address has an address length of 128 bits, which is about 4.3 billion, and the address is very large and almost inexhaustible.Put it this way, every grain of sand on earth can be assigned to its own address.
With IPv4, we use the IP of the shared public network. But with IPv6, even the street lights can have an independent IP.
There are tens of billions of devices in the world, but there are only over 4 billion addresses. This is enough for average users surfing the Internet.However, it is very difficult to access a particular Internet device via the public network, e.g.For example, check the camera at home or remotelycontrol your own computer.With IPv6, each device can have an independent IP address.If equipped with a 5G network, each car, street lamp, trash can, hydrant can have a separate IP address.IPv6 address makes the "Internet of Things" possible.
In addition to the extremely large IP address resources, IPv6 is more secure and more responsive.
IPv6 is more secure with encryption options by default, making it difficult to crack communication between users and servers.In addition, IPv6 can significantly reduce the network delay, which can be reduced from 100 ms to single digits.Low network latency is not only helpful for gaming, but also makes remote drones and unmanned cars possible.
IPv4, IPv6 and VPN
Regardless of IPv4 or IPv6, both of them run the risk of DNK leakage when connecting to the Internet, even though IPv6 is more secure than IPv4.
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