Today we will discuss some of the Advantages Of IPv6. IPv6 is the newest and improved Internet Protocol version. Learn more about the features it offers and its improvements over the older IPv4. Just as most drivers don’t bother to look under the hood of their cars, most Internet users don’t want to know about the underlying technologies that allow their computers and even the entire Internet to function as it does today. For the more technically inclined, however, we’ve created this blog that explains the features of the new IPv6 protocol in detail.
What is IPv6?
IPv6 is a type of internet protocol. This is the next generation of Internet Protocol (IP). It is primarily designed to solve the problem of end-to-end in the IPv4 address space, but it also offers other enhancements. IPv6 addresses are 16 bytes long, as opposed to IPv4’s 4-byte address. We have already talked about what IPv6 is and its improvements over IPv4. Now we tell you more about the features that come with IPv6.
Previous versions of IPv4 used a 32-bit addressing scheme to support 4.3 billion devices. With the rapid development of the Internet, personal computers, smartphones, and IoT devices, it is clear that more addresses than the IPv4 address space are needed for connected devices. On the other hand, a 128-bit address is used, which allows for about 3.4 × 10^38 addresses. IPv6 uses eight sets of four hexadecimal digits (separated by colons) instead of the four sets of IPv4 addressing systems of one to three digits.
Advantages Of IPv6
Here are some reasons why you might want to choose IPv6 over IPv4:
- No more Network Address Translation (NAT)
- Built-in authentication and privacy support
- DHCP is not required
- Advanced multicast routing
- Automatic configuration
- Personal address collision prevention
- QoS flow label
Features of IPv6
The successor to IPv4 was not designed to be backward compatible. Attempting to keep the basic functionality of IP addressing, IPv6 has been completely redesigned. It offers the following features:
Larger Address Space
Compared to IPv4, IPv6 uses 4 times more bits to address devices on the Internet, which would provide an address space for approximately 3.4 × 10^38 devices. This address space can meet the aggressive requirements for allocating addresses for almost anything in the world. According to an estimate, 1564 addresses can be assigned per square meter of this planet.
Simplified Header
The IPv6 header was designed to be less complex and easier to process than the IPv4 header by removing all unnecessary information and options (that are present in the IPv4 header) at the end of the IPv6 header.
End-to-end connectivity
With IPv6, each device has a unique IP address and can traverse the Internet without the use of NAT or other translation elements. After IPv6 is fully implemented, each host can directly access other hosts on the Internet, but it will face some restrictions such as firewalls and organizational policies.
Auto-configuration
IPv6 supports both stateful and stateless auto-configuration modes of host devices. Thus, the absence of a DHCP server does not prevent inter-segment communication.
Fast forwarding/routing
A simplified header places all unnecessary information at the end of the header. The information contained in the first part of the header is sufficient for the router to make routing decisions, thus speeding up the routing decision-making process by looking at mandatory headers.
IPsec
Initially, it was decided that IPv6 must have IPsec protection, making it more secure than IPv4. Unfortunately, this feature is now optional.
No Broadcast
Although Ethernet/Token Ring is considered a broadcast network because they support broadcasting, IPv6 no longer supports broadcasting. It uses multicast to communicate with more than one host.
Anycast Support
This is another feature of IPv6. IPv6 introduced the Anycast mode of packet routing. In this mode, multiple interfaces on the Internet are assigned the same Anycast IP address. The router, while routing, sends the packet to the closest destination.
Mobility
IPv6 was designed with mobility in mind. This feature enables hosts (eg mobile phones) to roam in different geographical areas and remain connected to the same IP address. The mobility feature of IPv6 takes advantage of automatic IP configuration and extension headers.
Enhanced Priority Support
IPv4 used 6 bits DSCP (Differential Service Code Point) and 2 bits ECN (Explicit Congestion Notification) to provide quality service. However, it can only be used on end-to-end devices that support it; That is, the source and destination devices and the underlying network must support it. In IPv6, traffic classes and flow labels are used to inform underlying routers how to process the packet and route it efficiently.
Smooth Transition
A large IP addressing scheme in IPv6 enables the allocation of devices with globally unique IP addresses. This mechanism preserves IP addresses, thereby eliminating the need for NAT. So machines can send/receive data between each other; For example, VoIP and/or any streaming media can be used much more efficiently. Another fact is, headers are less loaded, so routers can decide to forward and forward as soon as they arrive.
Extensibility
A significant advantage of the IPv6 header is that it is extensible to add more information to the Options section. IPv4 provides only 40 bytes for options, whereas IPv6 options can be the same size as IPv6 packets.
Conclusion
We hope that with the help of this detailed article, you were able to learn more about the IPv6 protocol and why it is being deployed instead of the widely used IPv4. We have highlighted the main advantages of going with IPv6 as well as its main features. If you have any queries or suggestions, please leave them in the comment section below.
