How Do I Configure an IPv6 Environment for Linux?

Nowadays, more and more ** require the architecture of IPv6, especially some government affairs**, and the superior directly requires that the architecture of IPv6 must be built.

The follow-up will continue to output dry goods, thank you.

(1) Let's first understand what IPv6 is

IPv6 is the abbreviation of "Internet Protocol Version 6", which is the next generation of IP protocol designed by the Internet Engineering Task Force (IETF) to replace IPv4.

The biggest problem of IPv4 is the lack of network address resources, which seriously restricts the application and development of the Internet. The use of IPv6 can not only solve the problem of the number of network address resources, but also solve the obstacle of multiple access devices to connect to the Internet

IPv6 is a 128-bit binary system, and for convenience it is stipulated that 16-bit binary is a group, and each group is separated by a colon ":", which can be divided into 8 groups, each of which is represented in a 4-bit hexadecimal mode. 16-bit binary * 8 128-bit binary 1111 1111 1111 1111::

4-bit hexadecimal *8 32-bit hexadecimal 1 1 1 1:: If the values of several consecutive segments are all 0s, then these zeros can simply be represented by :, which can only be used once in an IPv6 address.

(2) The following takes centos 7 as an example

Of course, the premise of this IPv6 architecture is that your server has an IPv6 address, which can often be obtained by contacting the server's provider.

1. IP configuration:

The following table describes its configuration.

2. Configure DNS:

The following table describes its configuration.

3. Restart the NIC.

(3) Add IPv6 resolution records to the domain name

Add the IPv6 type of the host name of the root domain name involved in IPv6 translation to the assigned IPv6 address.

For example, if a domain name with www needs to be converted to IPv6, add a domain name with the name wwwaaaaRecord type.

(4) How to test** IPv6 is supported

Note that in order to test whether ipv6 ping is normal, both the server and the client must support and correctly configure the IPv6 address.

2. National IPv6 development testing platform.

The address can be checked to see if IPv6 is supported.

The communication principle is the same as deploying IP4, but the IP writing may be different.