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IPv6 Appearance

Hi,
I wish to know Network+ last version in terms of year. Also, I wish to know whether it still contain IPv4. Finally, I wish to know if IPv6 has been deployed in internet & we have websites that have it. Do you think its still a necessity to learn about IPv4 & its subnetting?
Your's faithfully,
David

7 Replies 7

Seb Rupik
VIP Alumni
VIP Alumni

HI there,

I don't quite understand the first part of your question. Regarding IPv6 usage, take a look at the links on this page:

https://www.internetsociety.org/deploy360/ipv6/statistics/

 

Should you still learn IPv4 subnetting? Absolutely! IPv6 adoption has been incredibly slow so depreciation of IPv4 is a very long way off.

 

cheers,

Seb.

1. Do we have any website that redirects with IPv6?
2. I've heard that RFC has announced IPv4 exhaustion, is it true?

Hello again,

Some operating systems have implemented the IETF Happy Eyeballs algorithm which prefers an IPv6 over IPv4 connection to a resource. Certainly Apple is very vocal about its implementation of the algorithm. In fact I saw a slide deck recently from an Apple conference where it states that IPv6 is faster. ah here it is:

https://www.zdnet.com/article/apple-tells-app-devs-to-use-ipv6-as-its-1-4-times-faster-than-ipv4/

 

As for IPv4 exhaustion, yes that is very real, but keep in mind that is for the public address space. There is a very healthy market for reselling public IPv4 subnets and organisations from the internets infancy selling off some of their large prefixes.

https://www.arin.net/vault/announcements/2015/20150924.html

Different internet registers have varying levels of capacity, but all are being diminished.

 

IPv6 is the future of the internet! ;)

 

cheers,

Seb.

Tnx for your perfect reply. As a Cisco VIP Advisor, which course do u recommend as most useful in today's market?

The only course/ certification I have seen is: https://ipv6.he.net/certification/

 

It is more of a full stack course than just networking but because of this it will give you some great examples to work through.

 

cheers,

Seb.

Harold Ritter
Cisco Employee
Cisco Employee

And to add to Seb's information, you can also look at https://www.worldipv6launch.org/measurements/ for some additional service provider based statistics.

 

Regards,

Harold Ritter
Sr Technical Leader
CCIE 4168 (R&S, SP)
harold@cisco.com
México móvil: +52 1 55 8312 4915
Cisco México
Paseo de la Reforma 222
Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600
México

As a Cisco employee, which course do u recommend as most useful in today's market?
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