[Bump] IPv6 Day

[TurnedTheCorner]

Why should I care?

http://www.worldipv6day.org/

Won't the ISPs of the world get everything lined up so I, as a consumer schlub, don't even notice an impact when this switch over becomes mandatory?

[Bobblehead]

Originally Posted by TurnedTheCorner

Why should I care?

http://www.worldipv6day.org/

Won't the ISPs of the world get everything lined up so I, as a consumer schlub, don't even notice an impact when this switch over becomes mandatory?

Yes, but all the ISPs and backbone operators need some sort of a test to find anything misconfigured.

From your link:

Internet users will not need to do anything different on World IPv6 Day. Web services, Internet service providers, and OS manufacturers will be updating their systems to ensure Internet users enjoy uninterrupted service. In rare cases, users may still experience connectivity issues when visiting participating Websites.

[Barnes]

God I hope this explains some of the issues I have been having today.

[sclitheroe]

My IPv6 tunnel has worked flawlessly for a long time now. Highly recommend Hurricane Electric, they've been flawless, even if the only two IPv6 sites of any interest that I visit are www.v6.facebook.com and ipv6.cnn.com

[Bobblehead]

There have been some rumours that the hacker community would use this test as an opportunity to look for vulnerabilities, or attempt DDOS to see the affect the larger addressing (which requires slightly more processing power) would make.

On the flip side, I wonder if guys like Google relish the opportunity to be attacked while still early in the testing so they can evaluate if their servers are hardened.

[mykalberta]

I was a little dissapointed at CBC NW - they showed this rats nest of cables everywhere, not everyone who works in that field is a lazy a$$ who keeps their racks like that.

[TurnedTheCorner]

Originally Posted by mykalberta

I was a little dissapointed at CBC NW - they showed this rats nest of cables everywhere, not everyone who works in that field is a lazy a$$ who keeps their racks like that.

Here's some cable pron just for you.

[ken0042]

Bump- today is the day. (According to Google.)

http://www.google.com/intl/en/ipv6/

[sclitheroe]

Originally Posted by ken0042

Bump- today is the day. (According to Google.)

http://www.google.com/intl/en/ipv6/

I've been looking forward to today since the test last year.

My SNMP monitoring at home showed increased traffic on my IPv6 tunnel with no intervention on my part this morning - hitting Google, Facebook, Bing all seemed to be responding nice and quick on IPv6.

[sclitheroe]

Such a lovely sight:

C:\Users\administrator.CLITHEROE>nslookup www.google.com
Server: UnKnown
Address: ::1

Non-authoritative answer:
Name: www.l.google.com
Addresses: 2001:4860:8005::68
74.125.127.106
74.125.127.99
74.125.127.104
74.125.127.105
74.125.127.147
74.125.127.103
Aliases: www.google.com

Edit: Google has gone all-in on their IPv6 rollout - maps, plus, images and youtube are all returning IPv6 DNS entries. That's pretty impressive.

[Slacker]

Are you telling me I need to learn how to subnet IPv6 networks?!

Gah!

[HOOT]

So I gotta ask a few questions:

What happened to IPv5?

Why didn't they make that many IPs during IPv4?

And what the hell is sclitheron looking at that makes it lovely?

[Slacker]

^IPv5 is a audio, video protocol

http://www.oreillynet.com/onlamp/blo...d_to_ipv5.html

Why didn't they make that many IPs during IPv4?

IPv4 is a set of binary numbers. There is only 256 numbers per each octet on the IP address (From 0 -255). With the fast growth of devices reaching the internet, you will run out of addresses rather quick.

IPv6 uses hexadecimal numbers instead of binary. You will have digits from 0 to 9 and then from A to F. You will have bigger numbers right from the start.

[sclitheroe]

Originally Posted by Slacker

IPv4 is a set of binary numbers. There is only 256 numbers per each octet on the IP address (From 0 -255). With the fast growth of devices reaching the internet, you will run out of addresses rather quick.

IPv6 uses hexadecimal numbers instead of binary. You will have digits from 0 to 9 and then from A to F. You will have bigger numbers right from the start.

That's not correct. It's got nothing to do with hexadecimal or binary number systems. IP addresses are not numbers, they are bit patterns. That's why we can do neat things like subnet masking, which is achieved with simple boolean operations on the individual bits.

An IPv4 address is 4 groupings of 8 bits worth of binary data.

An IPv6 address is 16 groupings of 16 bits worth of binary data.

You can represent address data in any number system you want:

For example, 255.255.255.0 can be written as:
255.255.255.0
ff.ff.ff.0
11111111.11111111.11111111.00000000

Obviously, we choose to use the decimal numbers out of convenience and convention, but to a computer, they are all the same - a 32 bit wide bit pattern (it's a bit pattern, not a number, since we don't do math on IP addresses)

A 32 bit wide bit pattern can be 4,294,967,295 possible unique values

A 256 bit wide bit pattern, which is what IPv6 uses, can be 3.4 x 10e38 possible unique values.

[HOOT]

My head hurts.

[Slacker]

Originally Posted by sclitheroe

That's not correct. It's got nothing to do with hexadecimal or binary number systems. IP addresses are not numbers, they are bit patterns. That's why we can do neat things like subnet masking, which is achieved with simple boolean operations on the individual bits.

An IPv4 address is 4 groupings of 8 bits worth of binary data.

An IPv6 address is 16 groupings of 16 bits worth of binary data.

You can represent address data in any number system you want:

For example, 255.255.255.0 can be written as:
255.255.255.0
ff.ff.ff.0
11111111.11111111.11111111.00000000

Obviously, we choose to use the decimal numbers out of convenience and convention, but to a computer, they are all the same - a 32 bit wide bit pattern (it's a bit pattern, not a number, since we don't do math on IP addresses)

A 32 bit wide bit pattern can be 4,294,967,295 possible unique values

A 256 bit wide bit pattern, which is what IPv6 uses, can be 3.4 x 10e38 possible unique values.

No argument there.

My question, any place where you can learn IPv6 subnetting? I had to take my CCNA last year, and I was caught with a nasty surprise with IPv6 subnetting questions.

[ken0042]

Originally Posted by HOOT

Why didn't they make that many IPs during IPv4?

In addition to what has been said- keep in mind that IPv4 was brought in during the late 70s and early 80s. At that point there was an IP address for every person on the earth. If you had told anybody in 1981 that 30 years later that there would be this many websites, internet users and internet enabled devices- they wouldn't have believed you.

I'm tempted to save a copy of that Google page where they talk about "to offer the Internet virtually infinite room to grow." Because in 20 years we could be looking at some other protocol due to us running out.

[TurnedTheCorner]

Originally Posted by TurnedTheCorner

Why should I care?

http://www.worldipv6day.org/

Won't the ISPs of the world get everything lined up so I, as a consumer schlub, don't even notice an impact when this switch over becomes mandatory?

I didn't notice anything today. I am a satisfied consumer schlub.

[sclitheroe]

Originally Posted by ken0042

I'm tempted to save a copy of that Google page where they talk about "to offer the Internet virtually infinite room to grow." Because in 20 years we could be looking at some other protocol due to us running out.

It's fun to make predictions like that, but I have to say no:

How big is that? Well, several web sites say there are 1.33 x 10^50 atoms in the earth. That’s way bigger than 2^120. But to make it come closer, I computed the number of atoms on the surface of the earth. That turns out to be 1.26 x 10^34 atoms. 2^120 is 1.33 x 10^36, which is still bigger by 105 times.
So we could assign an IPV6 address to EVERY ATOM ON THE SURFACE OF THE EARTH, and still have enough addresses left to do another 100+ earths. It isn’t remotely likely that we’ll run out of IPV6 addresses at any time in the future

IPv6 will obsolete itself by virtue of progress, not capacity. And even then, that is debatable because it will remain a consistent, historically entrenched, and backwards compatible way of granting devices unique addresses. Basically, when they decided on the new address size, they made damn sure they would never, ever run out this time.

[Azure]

I would venture a guess that we will never run out of IPV6 addresses. Hard to believe that Earth could sustain the amount of people it would take to use up all the addresses.