Is an IPv6 address an address that doesn t use a router? 50

Still have to use.

IPv6 is divided into local link addresses, IPv6 local site addresses, IPv6 global unicast addresses, IPv4 transition IPv6 compatible addresses, and IPv6 interface identifier addresses based on EUI-64. Each of these addresses is described below.

IPv6 local link address.

IPv6 local link addresses, similar to those defined by Automatic Private IP Addressing (APIPA) in IPv4. First of all, let's explain the circumstances under which an APIPA (Automatic Private IP Addressing) address will be generated and used in IPv4. For example:

If a DHCP server fails and the clients on the enterprise network cannot be assigned an IP address, the client host generates an APIPA address. This address can ensure communication between hosts within a subnet, but the APIPA address cannot complete routing communication. The role of the IPv6 local link address is to discover the communication between the neighbor node and the link local node in stateless auto-configuration.

And can only communicate between nodes connected to the same local link, can not communicate and route across routers**, how to understand the local link address of IPv6, first of all, we must understand the meaning of the link, site, and the whole world defined by IPv6. As shown in the figure, the IPv6 link is equivalent to the host link connected to a Layer 2 switch in the enterprise network, and a more explicit statement is that the link is in the same broadcast domain, and if understood from the perspective of IPv4, it can be understood that the IPv6 link is the host in the same subnet.

For example, the IPv6 host in link A and link B use the local link address to communicate on their respective links, but the local link address cannot be used to complete the communication between link A and link B, which is similar to the automatic private IP addressing (APIPA) in IPv4.

You don't need to set IP4 for this.

In the router, there is an IPv6 feature. For this feature, many people are not very familiar with it....Ruler Wu dressed....It seems that without turning it on, the router will work fine and the Internet will not be affected. ......So, what is the use of this function and whether it needs to be turned on, it needs to be carefully analyzed.

IPv6 is the abbreviation of Internet Protocol Version 6, which means Internet Protocol Version 6.

In the Internet Protocol, there are clear rules for IP addresses.

The IPv4 protocol used in the past stipulates that the length of the IP address is 32 bits. ......In this way, theoretically, the number of IP addresses is 2 32 ......At the time of the development of this protocol, there were not many Internet devices, and the number of IP addresses was completely sufficient, which was fully sufficient to meet the demand.

However, with the continuous development of the Internet, more and more devices connected to the Internet have become insufficient, and the IP address has become insufficient, so there is an IPv6 protocol ......

In the IPv6 protocol, the length of IP addresses is 128 bits, so that the total number of IP addresses on the Internet has increased exponentially, which can fully meet the needs of current and future use.

Since IPv4 and IPv6 are still in a state where the old and new protocols coexist, there will be both IPv4 and IPv6 setting ......functions in the router

In actual use, it is best for us to turn on this IPv6 function, which will not affect our current working status, but also provide conditions for future use ......So, for this feature, let's turn it on......

It is recommended not to open it at home, and the network stability is very poor.

Look at the demand, open it if you need it, and close it if you don't need it. In fact, in practical application, the little partners are more likely to agree with "look at the demand, open it if you need it, and close it if you don't need it". The operating system has priority access to IPv6.

However, IPv6 for some application servers is still in the debugging stage, and the use of IPv6 may not be as effective as that of more mature IPv4, which is not necessary at present. It doesn't mean that if IPv6 is enabled, there will always be an IPv6 address. It must be supported by a broadband carrier, an optical modem, and configured correctly.

Advantages: IPv6 adds enhanced multicast support and convection control, which makes the multi-most applications on the network have the opportunity to develop significantly, and provides a good network platform for service quality control. IPv6 adds support for auto-provisioning.

This is an improvement and extension of the DHCP protocol, which makes the management of networks, especially LANs, easier and faster.

Does IPv6 on the router need to be turned on? Many people wonder, in this issue, we will come to ** whether the router IPv6 needs to be turned on.

At present, IPv6 is not yet popular, and the router will not have any impact on the network speed if IPv6 is turned on, and only a few regions support IPv6, so there is no difference between turning on and not turning on IPv6, and it is meaningless.

1. Ordinary home routers do not support IPv6, unless dlink's home router does. If your network supports IPv6, you can connect your router as a switch;

2. If you need a routing function to share the Internet at the same time, you need to assign two input lines by the upper-layer switch and plug the two input lines into WAN and LAN and other LAN ports. Connect to a computer so that it can support IPv6. You need to manually set the IP address (v4) of the computer to the IP network segment assigned by the router.

This article is based on the TP-linktl-R473G brand.

Look at the demand, open it if you need it, and close it if you don't need it. IPv4 and IPv6 are in the coexistence stage, if IPv6 is enabled on the home router in this case, then the terminal device that connects to the LAN and supports IPv6 will also obtain the IPv6 address through the router when obtaining the IPv4 address, so as to access other devices based on the IPv6 address.

If you want to use an IPv6 address to access the Internet, you need to apply for an IPv6 public address from the carrier and the terminal device supports IPv6.

IPv6 uses 128 bits for IPv6 address length, allowing 10 unique addresses. To get an idea of the scale involved, you can take the entire size. As you can see from these figures, with IPv6 it is possible to provide billions of addresses for everyone and ensure that any device that must connect to the Internet has a unique IP address.

Conservative estimation of the actual allocable IPv6 addresses, Youminwu can still be divided into more than 1,000 addresses per square meter of the entire earth, or to make up an IP address for every grain of sand in the world.