Comparison between IPv4 and IPv6 technology types

As we have mentioned a lot about IPv4-to-IPv6 technology, what are the differences between these methods? Now let's make a comparison and analysis to see which environments are suitable for these technologies and what special requirements are required for their operations. I hope that the summary will help you understand the content.

Analysis and Comparison of IPv4 to IPv6 transition technology

There are many types of IPv4 to IPv6 transition technologies, but they have their own characteristics and their application scenarios are different. The following sections will analyze and compare various technologies ｡

Double stack Technology

The dual-stack technology can completely solve the problem of IPv4/IPv6 coexistence, but it is effective only when all network-wide router devices support dual-stack, it has high requirements on the transformation of the existing IPv4 network. It is a suitable strategy for consideration after all the transformation of the IPv4 backbone network ｡

Tunneling Technology

Tunnel technology uses existing IPv4 network resources to carry out IPv6 services during the transition from IPv4 to IPv6, there must be a large number of tunneling applications in the IPv6 development process ｡

Because of this, tunneling technology has received a lot of attention and there are many types. The following analyzes their characteristics and applicability:

A) Manual Tunnel Configuration is intuitive and simple, but the management overhead is high. It is suitable for connecting two stable IPv6 networks ｡

B) The automatically configured tunnel for compatible addresses is only applicable between independent host sites. IPv4 addresses consume a lot and have poor scalability ｡

C) The 6to4 tunnel is suitable for interconnection between multiple IPv6 subnets. Users with public IPv4 addresses can configure their own subnets for ease of use ｡

D) The 6over4 tunnel must be supported by IPv4 multicast and cannot be used in large-scale networks. It has a small application scope ｡

E) ISATAP supports IPv4 subnet connections through NAT, which is easy to use and suitable for internal use within the enterprise network ｡

F) the tunneling proxy is suitable for use on an independent host site and can be used as a service provided by the ISP to simplify the method of connecting the site to the IPv6 backbone network ｡

G) MPLS tunnel provides an efficient tunnel transmission mode in IPv4 networks. MPLS tunnel provides better performance and Optimized Routing than other tunneling methods. It is a business method provided by IPv4 carriers ｡

IPv4/IPv6 Interoperability Technology

The IPv4/IPv6 interoperability technology enables communication between IPv6 hosts and IPv4 hosts. It is mainly used for IPv4 users to access special IPv6 applications during the transition from IPv4 to IPv6, or IPv6 users access a wide range of IPv4 applications ｡

In the IPv4/IPv6 Interoperability Technology, NAT-PT provides a complete network layer solution, can support a certain scale of network interconnection ｡

BIA and SOCK64 are converted at the application layer. You need to modify the host system. This type of solution depends on the host software manufacturer and has limited application scope ｡