Ipv6 why not

If everything is connected to everything else directly; then this is actually seen as a security issue. I know the IPv4 addresses of the main equipment on my network.

Remembering However, in that complexity lies the actual promise of IPv6 and why organizations should be looking more seriously at it. Time and time again, Quocirca finds through its research the standard top three issues that business and IT feel need dealing with when it comes to IT.

There is little trust in the IT world — yet IPv4 was designed for a simpler world where that trust was taken as a given. IPv6 was designed for a more grown-up, corporate world. The three reasons why it should be taken up are:. It can have security built-in, through its design for supporting IPSec. It does, however, need setting up correctly. According to the IETF, IPv6 can handle packets more efficiently than the previous iteration, resulting in improved performance and security, while enabling ISPs to reduce the size of their routing tables by making them more hierarchical.

Perhaps the primary reason IPv6 has been slow to take hold is because of network address translation NAT , which has the ability to take a collection of private IP addresses and make them public.

With NAT, thousands of privately addressed devices can be presented to the public internet by one device -- think a firewall or a router -- using a single public IP address. At the moment, IPv6 is only slowly starting to have an impact in the enterprise space, primarily because the cost and complexity of deploying IPv6 has, as yet, been hard to justify while IPv4 is still relatively performant. Another reason many companies hesitate to adopt IPv6 is that not all of the tools they use to manage and monitor their networks actually support the latest protocol.

There are pockets where I may still use it, but so far, there isn't really a good reason to keep IPv6 enabled. Nothing "broke" so far. And maybe I am getting too old to play with my network configuration all the time. Ullrich, Ph. If they allowed inbound traffic, then I could send packets to the address space of mobiles and charge the subscribers. For controlled networks in a corporate environment, connected via VPN, maybe a proxy server for content filtering, or some special exceptions for 1 or 2 clients in a branch office, this is a configuration hell.

In addition, the protocol base on router advertisement before DHCPv6 makes it really dangerous for corporate networks, if new devices from third party contractors or an attacker get installed and may have this feature enabled. Even if you "disable" IPv6 in the clients network configuration, the router advertisement may disturb your normal operations, i.

A lot of internal processes in modern OS's depend on IPv6, so a complete termination is most likely not an option. To Disable it on the gateway's internal interface, so far the best. Hurricane Electric vs Cogent. The entire IPv6 address space is divided into two halves. If we are both on the same side e. But if we are on opposite sides, then the packet will probably be dropped by Cogent.

This is because Cogent refuses to peer with Hurricane Electric. It's been going on for over a decade. There was cake. Big cloud providers, like Google and Amazon, already do this. But smaller carriers likely only have peer connections to one or the other. Especially when there is a risk-averse management or a focus on the next quarter or the end of the financial year, it can be tough to make a business case for deploying IPv6.

What is needed most for IPv6 deployment to become the de facto way to move data across our networks is vision. We need executives to share the vision that engineers had long ago, of a truly global network with room to grow. A network that not only allows you to connect every person and thing on this planet, but one that supports innovation and has the flexibility to adapt to new challenges and stand the test of time.

The IPv4 protocol has gotten us a long way, but with its limited number of addresses, it has run its course. Connecting more people and new things is getting harder, and we need IPv6 if we want to continue to expand and grow the Internet and its capabilities. Is there another way? Perhaps there could be some intervention, for instance, by legislators forcing network and service providers to deploy a particular protocol.

Many governments and even the European Union are considering their options here. Network operators are free to choose whatever protocols and technologies they think are best or that bring added value. It is likely a big part of why the Internet has become such a success and why it has mostly overtaken all other forms of telecommunication and data networks.

Politicians talk about maintaining the Internet as a global unfragmented network that supports and lets us enjoy our freedoms, like they did in the recent G7 declaration. IPv6 provides a path to make that happen, but we all need to do our fair share. The Internet was intended to be an open, collaborative structure of networks. If we all invest just a little, for instance, by enabling IPv6, we can maintain this vision and keep the network a free, global and unfragmented space.

Because in the end, the true value of the Internet cannot be expressed in monetary or economic terms alone; it is so much more than that. More and more professionals are choosing to publish critical posts on CircleID from all corners of the Internet industry.

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I make a point of reading CircleID. There is no getting around the utility of knowing what thoughtful people are thinking and saying about our industry. Windows and every other operating system prefers IPv6 over IPv4 when both are available. If it only has unique local addresses or link-local addresses, IPv4 would be preferred, but for regular global addressing, IPv6 is preferred notwithstanding Happy Eyeballs and other application-level nuance.

We've got native IPv6 available and active. One thing I haven't checked though is whether routers these days are enabling IPv6 by default.