Security in an IPv6 Environment

Routing and Route Management Lesson 3L: Configuration Methods Lesson 3M: More on Transition Approaches and Mechanisms Module 4: Security Mechanisms and Approaches Lesson 4A: Security Lesson 4B: IPv6 Areas of Security Concerns: Neighbor Discovery Issues Lesson 5D: Routing Headers Lesson 5E: Minimum Security Plan Module 6: Packet Filtering Lesson 7C: Along with good information, bad information is out there, and some tenacious myths are causing unwarranted concern.

We address the more common ones in the following sections. We don't need IPv6 This is perhaps the biggest myth, made all the more persistent by the fact that most people can connect to the Internet without IPv6 - at the moment.

IPv6 Security

There are two ways in which an organisation can need IPv6. The first, and most obvious, is that we really are running out of IPv4 address space. We may quibble about when, but eventually an organisation which uses only IPv4 will find its plans halted when it makes an application for IPv4 address space which cannot be met. More prudent organisations will move before that crunch comes. The second way IPv6 is needed is as an generator of opportunity and a platform for innovation.

While it would be foolish to say of IPv4 that everything which can be invented has been invented, it is certainly true to say that there are classes of network applications that just aren't possible with IPv4 - for example, vehicle-mounted telemetry, which might involve millions of networked sensors on cars.

Basic IPv6 Security Considerations

Or simply giving every adult Indian resident an IP networked mobile telephone. With IPv6 a world of new possibilities for innovation opens up. Countries like India, with huge populations and burgeoning technical competence, will almost certainly not attempt this, and will move to IPv6 directly.

In fact, we can see this happening already in places like Japan, Korea and China.

These countries either are already or will become very large markets. Organisations that wish to be active in those markets but do not use IPv6 will be at some competitive disadvantage. IPv6 will replace IPv4 This may be true in the longer term - decades or more - but is certainly not true in the foreseeable future.

There is simply too much IPv4 infrastructure, with too much money and know-how invested in it, and with too many nooks, crannies and edge cases for IPv6 to simply replace IPv4. This is a very important point - an organisation wishing to take advantage of IPv6 does not need to discard its IPv4 infrastructure. IPv6 is so much more complicated! Their larger size makes IPv6 addresses look quite daunting; perhaps because of that a perception has arisen that managing IPv6 is somehow much more complicated than IPv4.

This is not really true. Almost all the important ancillary protocols like DNS work in IPv6 pretty much as they do with IPv4, and in some areas - autoconfiguration and multicast being two major examples - have been greatly simplified.

From IPv4 to IPv6: Dual stack

The vast address space means no more endless reconfiguring of limited address space. This makes life much simpler for network managers, especially in applications where the number of connected nodes varies widely, such as wireless networks. There are some new ancillary protocols - like multicast listener discovery or router advertising, but for the most part these replace some similar mechanism in IPv4.

In general, IPv6 is far more similar to IPv4 than it is different. What this means for industry is that the often very great investment an organisation may have made in training and educating its technical staff is not invalidated by IPv6.

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Quite the contrary - the more people know about IPv4, the more easily they will be able to adapt to and then manage, administer or innovate in an IPv6 environment. You can't multi-home with IPv6 Organisations that need uninterrupted network connectivity will often set up network connections to more than one upstream provider. This is known as "multi-homing". Multi-homing is generally managed with some sort of routing protocol, so that if one link goes down, the other can take over.

Multi-homing is sometimes done for efficiency - to have the best network paths to different destinations.

The allocation policies for IPv6 address space were based, for a long time, on two things: Huawei calls for evidence against company to be shown: Chairman of Chinese giant has reportedly said there is no evidence his company is a security threat. NASA discloses data breach. Hack took place in October Agency still doesn't know the number of impacted employees.

Microsoft officially announces 'Windows Sandbox' for running applications in isolation. Microsoft's coming 'Windows Sandbox' feature is a lightweight virtual machine that allow users to run potentially suspicious software in isolation. It could debut in Windows Google working on blocking Back button hijacking in Chrome. Google wants to put a stop to shady sites inserting fake entries in Chrome's history list.

DOD doesn't keep track of duplicate or obsolete software.

From IPv4 to IPv6: New technology

July memorandum says DOD has yet to report over 30 percent of its software inventory. Will your Facebook profile live longer than you? As our lives are increasingly digitised, it might be time to think about what happens to our online social, and email accounts after we die.

Remove yourself from the internet and erase your online presence.

IPv6 security: What you need to know

Here is a step-by-step guide to reducing your digital footprint online, whether you want to lock down data or vanish entirely. Paranoia will destroy us: Why Huawei and other Chinese tech is not spying on Americans. The notion that the Chinese government would spy on corporations and US agencies with electronic devices manufactured by Chinese companies is not only absurd but would be catastrophic Trend Micro users will now receive a warning over the use of Hola as "unwanted" and risky software.

My Profile Log Out. Networking The spectrum auction's forgotten issue. Networking London needs IPv6 at the starting gun. Tech Industry Company boards must stop dawdling over IPv6. Please review our terms of service to complete your newsletter subscription. You agree to receive updates, alerts and promotions from CBS and that CBS may share information about you with our marketing partners so that they may contact you by email or otherwise about their products or services.