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Technical Q&A > IP v6

Hi Nicky,

Have you started to see any widespread adoption of IPv6? Should this be a priority for IT pros today?

Thanks!

Greg

September 30, 2009 | Registered CommenterGreg Fyn

nope

It is however covered in the basic network certifications these days, so most know the basics because they need to.

However, i have never used it outside the lab

besides most of the time you have to tunnel IP6 traffic over IP4 or use special gateways

September 30, 2009 | Registered CommenterSupernova

most companies are fine with private ip4 addressing.

Yes there are advantages to using IP6 on the internet, however, a mainstream architecture isn't in place.

Performance and security, however, could also swing it in the future. However, i don't see it happening any time soon.

PS UKERNA (apart of JANET) is a IP6 internet tunnel broker for the UK

September 30, 2009 | Registered CommenterSupernova

I hope it does take off....it appears to beat the heck out of NAT and alot of the manual configurations that we have to do today, but what a huge undertaking!

September 30, 2009 | Registered CommenterGreg Fyn

"alot of the manual configurations"

okay if you can get used to doing ipv6 stuff in your head.

At least ipv4 addresses are easier to remember when you do need to know them.

October 1, 2009 | Registered CommenterSupernova

I would tend to agree with you that IPv4 addresses are easier because they're more phone-number like. I'm not sure what the so called "easy work around" will look like because v6 IPs are anything but human readable.

October 2, 2009 | Registered CommenterGreg Fyn

At TechEd in Berlin this week and attended a session on IPv6 given by Mark Minasi.

To be honest I have largely ignored IPv6 but I think now is the time to concentrate on it to stay ahead of the crowd. It is comming whether we like it or not and IPv4 addresses are due to be depleted in 2011-2012.

I was amazed at how simple the concepts are, forget about subnetting everyone is likely to get 64 bits to play with for hosts and 16 to represent 'subnets'. No manual config necessary, no DHCP server required, it is a bit of a mind shift from IPv4 but Minasi did such a good job of describing it.

Hopefully when I learn more about it, we can do a video podcast on it.

Nicky

November 10, 2009 | Registered CommenterNicky Curtis

I hate to sound, well...

could you explain it in the same way either by an audio or video podcast so that others can get ahead of the crowd?

Y'know, I'm kinda interested in this.

Oh and you'll be glad to know that the Social Impacts of Computing part of the IT GCSE is still there 20 years on Nicky....


EDIT: Look at the advert below "IPv6 certification in minutes..."

November 11, 2009 | Registered CommenterJamie

@Nicky

DHCP does exist with ip6 buts in a protocol only form DHCPv6. The host bits are partly derived from the MAC addresses.
However, subnets must have a element of static configuration especially if you use AD sub-netting with the likes of location tracking

November 11, 2009 | Registered CommenterSupernova

This is a interesting vid

Google IPv6 Conference 2008
http://www.youtube.com/watch?v=mZo69JQoLb8

November 11, 2009 | Registered CommenterSupernova

Google IPv6 Conference 2008: IPv6 on Windows <<<< very good
http://www.youtube.com/watch?v=iK0nzdtzjvM&NR=1

November 11, 2009 | Registered CommenterSupernova

I don't think that the host portion is made up from the MAC address, I think that was the original intention but it posed too much of a security concern as effectively your machine could be tracked anywhere in the world.

Windows randomly generates the host portion. I was definitely told that DHCP is NOT required, but also it is likely to be used to provide any required DHCP options and static reservations. The main configuration options such as D/G, DNS, and IP are automatically assigned.

Anyway, I certainly need to do some more research before I do any video episodes, I do admit I am no expert (yet!)

Nicky

November 12, 2009 | Registered CommenterNicky Curtis

@nicky, if you got some sort of certification in it (see ad below) you would be 1up on Dave with your exams...

also, how is Nick?

November 12, 2009 | Registered CommenterJamie

@Nicky

No it doesn't require a DHCP server, however, DCHP has been updated to support IPv6 (DHCPv6), many experts dont support the idea of IPv6's auto-configuration and one of them in favour of DHCPv6 is CISCO

"I don't think that the host portion is made up from the MAC address, "

In windows it isn't i dont know why , in unix,other platforms and the *actual IPv6 standard* it *IS* generated from MAC (EUI-64). MS done their own thing. In fact windows boxes have two v6 IPs by default another MS thing. Of course you also have DHCPv6 as another option.

The whole thing is still very messy especially when we talk about the internet

November 12, 2009 | Registered CommenterSupernova

another argument for controlling addressing is when you use addressing for determining location which AD is often set-up to do via sub-netting. Whats the alternative people actually starting to use DNS LOC records after all these years :-)

Perhaps routers will automatically alter a few bits on each subnet i don't know.

November 12, 2009 | Registered CommenterSupernova

"have two v6 IPs"

more than two :-)

November 12, 2009 | Registered CommenterSupernova

sounds fantastic, I think I'll forget about IP related stuff until IPv8 comes out (I hope IPv8 just lets you assign an 8 digit number like a telephone number and that is it).

IPv6 is far to complicated for me...

November 12, 2009 | Registered CommenterJamie

You maybe waiting a long long time. ipv4 is over 30 years old

Did you know , well if you watch the first video you would because its the guy responsible for ip4, that ipv4 was never meant or intended to go into a production environment. They made ipv4 32bit for testing only, they wanted it to be 128bit (which ip6 is) or variable length.

November 12, 2009 | Registered CommenterSupernova

"IPv6 is far to complicated for me..."

in a true ipv6 environment you just plug-in a device and that's it. its protected by its own firewall and accessible to any other device in the world. my mobile can talk directly to my office pc.

Problem is A.people don't want that B. people misunderstand NAT and think its a security provision. that's when it gets complicated.

November 12, 2009 | Registered CommenterSupernova

IPv4 is 30 year old? Wow...

actually, I think I saw something to do with IPv6 in Windows Server 2000...

still, I'm still young in 30 years time there may be an IPv8 (or it could be sooner as technology has advanced over the years)

November 12, 2009 | Registered CommenterJamie

my point was dont wait , it could be a while ... just learn it. (IT is all about moving with the times)

"IPv6 in Windows Server 2000"

Yes it was a research/development preview it wasn't system level and things like AD did support it. If you watch the second vid i posted you'll know that it gives you complete run down, history and all :-)

November 12, 2009 | Registered CommenterSupernova

You see, I didn't think that they would have IP based stuff back then, but then again Mainframes and terminals ect...

November 13, 2009 | Registered CommenterJamie