Provision of the IPv6 Connection Feature｜Asahi Net｜Internet Service Provider in Japan with English Service

8th November 2016

Thank you for using Asahi Net.

From April 2017, Asahi Net will provide the IPv6 Connection Feature as a standard function^*1 for Asahi Net FTTH with FLET’S and other service courses using NTT fiber-optic lines.

By adding IPv6 along with the existing IPv4, we aim to achieve the mid to long term enhancement of user's network quality.

Asahi Net will continue to provide Internet connection services of high quality.

To start using the IPv6 Connection Feature, some of our members will need to have the “FLET'S v6 Option” (free of charge) provided by NTT East/NTT West. If you are using a fiber-optic line without this option, you need not worry as we will apply for the FLET'S v6 Option on your behalf after receiving your consent.

Asahi Net FTTH with FLET’S (Home Course/Mansion Course)
FLET'S Hikari Next (Family Course/Mansion Course)
FLET'S Hikari Light (Family Course)

Non-Supported Courses

Unfortunately, the IPv6 Connection Feature is not offered with the following connection Courses.

B FLET'S (Family Course/Mansion Course)
FLET'S Hikari Premium (Family Course/Mansion Course)

Furthermore, the IPv6 Connection Feature is not offered to Asahi Net FTTH with FLET’S users who are using one of the following FLET’S lines.

B FLET'S line
FLET'S Hikari Premium line

We are preparing so that our members can use the IPv6 Connection Feature without their having to take any specific procedures.

However, some members may need to take procedures.

Members using the following Courses as of 8th November 2016

Course	Procedure to be taken by members
Asahi Net FTTH with FLET’S (Home Course/Mansion Course)	Some members need to give us their consent to be provided the IPv6 Connection Feature. Q. What are the contents of user's consent?
FLET'S Hikari Next (Home Course/Mansion Course)	Some members need to give us their consent to be provided the IPv6 Connection Feature. Q. What are the contents of user's consent?
FLET'S Hikari Light (Family Course)

Members who will apply for any of the following Courses on or after 9th November 2016

Course	Procedure to be taken by members
Asahi Net FTTH with FLET’S (Home Course/Mansion Course)	Not necessary
FLET'S Hikari Next (Home Course/Mansion Course)	Some members need to give us their consent to be provided the IPv6 Connection Feature. Q. What are the contents of user's consent?
FLET'S Hikari Light (Family Course)

Function Name	IPv6 Connection Feature
Connection method	IPoE
Required conditions	The fiber-optic line you will use needs to have the FLET’S v6 Option or a function equivalent to the FLET’S v6 Option. The following optical lines already have this function, which meets the requirement: NTT EAST FLET'S HIKARI NEXT Giga Family Smart Type NTT EAST FLET'S HIKARI NEXT Giga Mansion Smart Type NTT EAST FLET'S HIKARI NEXT Family Giga Line Type NTT EAST FLET'S HIKARI NEXT Mansion Giga Line Type
Applicable lines	NTT East/West’s FLET'S Hikari Next line NTT East/West’s FLET’S Hikari Light line NTT East/West’s FLET’S Hikari Light Plus line
Applicable Courses	Asahi Net FTTH with FLET’S (Home Course/Mansion Course) FLET'S Hikari Next (Family Course/Mansion Course) FLET'S Hikari Light (Family Course)

We will revise a part of the agreement in accordance with the start of providing the IPv6 Connection Feature. If you are using the services, please check.

< Revision >: Article 8 was added to notify Asahi Net's capability with your consent to apply for NTT “FLET’S v6 Option” on user's behalf when needed.

Agreement after Revision (Revised on the 9th November 2016)

Applicable service	Agreement
Asahi Net FTTH with FLET’S	Asahi Net FTTH with FLET’S Agreement (Japanese)

Please check here for the details of the revision of the agreement (Japanese).

General Questions about IPv6

What is IPv6?

This is the abbreviation of “Internet Protocol Version 6.” It is the next version of the Internet protocol after IPv4. As it has a vast amount of address space, IP addresses can be assigned to a lot more devices.
What is the advantage of using IPv6?

It is possible to use an Internet connection service of higher quality with IPv6 compared to the conventional use of Internet with IPv4.

The “IPv4 address exhaustion problem” is a current issue, however, IPv6 provides a vast number of addresses, which makes it possible to assign IP addresses to various devices. IPv6 is necessary for more convenient use of the Internet.
What is “IPv4 exhaustion problem”?

The IPv4 addresses to be assigned to devices such as PCs and servers will be exhausted due to the growth of the Internet.

For the development of the Internet, it is essential to introduce IPv6 with the large address space in addition to IPv4 which is currently mainly used.

Please refer to the following page for details:

Task Force on IPv4 Address Exhaustion, Japan

Please also refer to the following page for detailed information on IPv6:

IPv6 Promotion Council
Is it better to start using IPv6 now?

Although problems will not occur soon, we recommend you make preparations early to start using IPv6 because it is expected to become the norm as Internet service companies including Google and Youtube have already begun to use IPv6.
Will there be any impact if IPv6 compatible web pages increase?

Depending on the network environment, OS (Operating System), kinds of browsers and versions you are using, you may be inconvenienced: you may feel the display speed of web pages is slow, or that a part or whole of a page cannot be displayed. We recommend you to make preparations early to start using IPv6.
Will IPv4 cease to be used with the spread of IPv6?

Since it is difficult to switch the whole of the Internet to IPv6 at one time, we need to continue using IPv4 for the time being.

Asahi Net members can use IPv6 together with IPv4 for the time being.

Questions about IPv6 provided by Asahi Net

Can I use IPv4 and IPv6 together with one line (one subscription)?

Yes, you can.
Can I continue to use IPv4 with Asahi Net?

Yes, you can as Asahi Net continues to provide services with IPv4 for the time being.

We recommend IPv6 Internet connection as it will become the norm.
What should I do to use IPv6 Internet connection with Asahi Net?

You need to subscribe to Courses applicable to IPv6 as listed on this page.

From April 2017, our services will be applicable to IPv6. You need not take any procedures for construction, setting-up equipment or change of wiring.
I understand that to use Asahi Net’s IPv6 Connection Feature, I am required to use the FLET'S v6 Option provided by NTT East/NTT West. If I cancel the FLET'S v6 Option by myself, what will happen?

You will be unable to use the IPv6 Internet connection service. You can continue to use the IPv4 Internet connection service.
Is there any possibility that charges for Internet use with IPv4 or IPv6 will be raised?

We have no plan to raise charges at the moment.
I’m using the IPoE service provided by another company. Can I use IPv6 with Asahi Net, too?

You cannot use the IPv6 Connection Feature provided by Asahi Net while using the IPoE service of another company.
Is the IPv6 Connection Feature applicable to AsahiNet docomo Hikari?

We are considering the issue of whether to make the IPv6 Connection Feature applicable to AsahiNet docomo Hikari. We will make an announcement on our website, etc., as soon as we make a decision.
I am using a Course or fiber-optic line not applicable to Asahi Net’s IPv6 Connection Feature, so what should I do to use the IPv6 Connection Feature?

A. If you want to use the IPv6 Connection Feature, you can use it by changing your Course to Asahi Net FTTH with FLET’S.

Change Course for Individual Members

Change Connection Course for Business Members
Are communication speeds expected to improve by using IPv6?

Internet communication speeds depend on a number of factors including the party being communicated with, your Internet connection environment and the time of day, and so it isn’t possible to clearly state that speeds will improve by using IPv6, however as Asahi Net will continue to offer high-quality Internet connection services we recommend using the IPv6 Connection Feature.

Issues that may arise at the time “FLET'S v6 Option” and “IPv6 Connection Feature” become available

There will be little impact on our customers. You need not worry.

Q. What are East Japan and West Japan areas?

Users in East Japan Area

Communication may be temporarily unavailable for the services listed below. Please take the following steps.

Service	Steps
FLET’S Virus Clear v6	Reboot the computer or other device you are using.
Remote Support Service
Office Marugoto Support (IT support & security)
Hikari Softtown
FLET’S easy setup tool
Service information site
FLET’S Market	Reboot the FLET’S Market device (such as Hikari i-frame).
Hikari TV	Reboot the Hikari TV device.
U-NEXT	Reboot the U-NEXT device.
Earthquake Early Warning FLET’S type	Reboot the Earthquake Early Warning device.
HIKARI DENWA HIKARI DENWA OFFICE type HIKARI DENWA OFFICE A (ACE) Incidences may occur during telephone call/communication between devices using Hikari Denwa for telephone call /communication with IPv6.	Wait for about 1 minute after cutting off telephone call/communication in case an incident occurs (Customers need not take any step).

Users in West Japan Area

Communication may be temporarily unavailable for the services listed below. Please take the following steps.

Service	Steps
FLET’S Hikari Next “Security Taisaku Tool”	Reboot the computer or other device you are using.
Remote Support Service
Office Net Omakase Support Service
FLET’S easy setup tool
FLET’S v6 Option
Hikari TV	Reboot the Hikari TV device.
U-NEXT	Reboot the U-NEXT device.
FLET'S MATOMETE SHIHARAI	Reboot the computer or other device you are using.
HIKARI DENWA HIKARI DENWA OFFICE type HIKARI DENWA OFFICE A (ACE) Incidences may occur during telephone call/communication between devices using Hikari Denwa for telephone call /communication with IPv6.	Wait for about 1 minute after cutting off telephone call/communication in case an incident occurs (Customers need not take any step).

Notes for users of “FLET’S Hikari Light” lines or “FLET’S Hikari Light plus” lines

To use Asahi Net’s IPv6 Connection Feature, you need to use the FLET'S v6 Option provided by NTT East/NTT West. Please be aware that the FLET’S v6 Option has a system in which there is a fixed traffic volume for Internet data regardless of the volume of Internet data traffic actually used.

There is a 40MB/month traffic volume for Internet data for FLET’S Hikari Light line users.
There is a 100MB/month traffic volume for Internet data for FLET’S Hikari Light Plus line users.

Note for users of an IPoE service provided by another company

Please note that you cannot use the IPv6 Connection Feature provided by Asahi Net while using an IPoE service provided by another company.

For inquiries or information, please contact here.