IPv6 Connection Feature Support Page

Connection Setup

See the following Setup Guide for more details on how to set up your connection.

FAQ

Request Procedure-related Information

Application

Switching from other ISP

IPv6 service allows one subscription (contract) per one fiber-optic line.
If you are using other ISP's IPv6 service, you cannot use Asahi Net's IPv6 Connection Feature.
Please apply for the IPv6 Connection Feature after canceling the IPv6 service provided by other ISP.

If you are informed that your application procedure could not be completed

If your application for start using the IPv6 Connection Feature could not be processed, Asahi Net will inform you by email.
Please check the details of the email and take the necessary steps.
There are the following three main reasons why the application cannot be completed.

You are using the IPv6 connection service provided by other ISP
  • IPv6 service allows one subscription (contract) per one fiber-optic line.
  • You are asked to take the steps to start using the IPv6 Connection Feature again after you cancel the currently using IPv6 connection service provided by other ISP.
Disagreement of fiber-optic line information
  • Information of the fiber-optic line subscriber is required to complete the application to start using the service.
  • If the given fiber-optic line ID and the subscriber name/subscriber phone number at application is different from the information registered to Asahi Net, your application procedure cannot be processed.
  • Please check if the information is correct, and take the steps to start using the IPv6 Connection Feature again.
Fiber-optic request procedure is in process
  • While a certain request procedure is in process, you are not able to take the steps to start using the IPv6 Connection Feature.
  • If you are waiting for your fiber-optic line to open, moving, or changing the subscriber, you are asked to take the steps to start using the IPv6 Connection Feature again.

Contract change

This section gives you information on procedures to take for the IPv6 Connection Feature in accordance with contract change, etc. of connection services.

Change the course of applicable connection service

If you change the course of your subscription service to a course which supports the IPv6 Connection Feature, you can continue using the feature.
However, if there is a change in the fiber-optic line ID, you are asked to take the necessary procedure. If you are changing to a service which do not support the IPv6 Connection Feature, the service will be canceled automatically after you complete the cancellation procedure.

Change in the fiber-optic line ID

If the fiber-optic line ID is changed due to moving, etc., you are asked to take the steps to using the IPv6 Connection Feature again with the new fiber-optic line ID and subscriber information.
If you are subscribed to either of the following connections services, please take the change procedure for your line ID in use in My Page.

  • FLET’S Hikari Next (Family, Mansion)
  • FLET’S Hikari Light (Family)
  • FLET’S Hikari Cross Course

Change in IPv4 over IPv6 Connection supported router

If you are changing the router used for the IPv6 Connection Feature (IPv4 over IPv6 Connection), you may be asked to make a request for “Redelivery of Settings Information” depending on the new router.

Redelivery of settings information in accordance with the change in router
Before the change After the change Request for Redelivery of Settings Information
Rental router Router prepared by yourself No need to request
Rental router No need to request
Router prepared by yourself Router prepared by yourself No need to request
Rental router Request required
  • *You can find the information of the router prepared by yourself and informed to Asahi Net in My Page under "IPv6 supported router in use".
  • *If you do not make a request for Redelivery of Settings Information when changing your router, the router information shown in your My Page will be the router at the point when you applied for the IPv6 Connection Feature (IPv4 over IPv6 Connection).

Deactivation (Cancellation)

This section gives you information on how to deactivate (cancel) the IPv6 Connection Feature.

  • Since IPv6 Connection Feature (IPoE) is offerd as an accessory feature of connection services, you cannot deactivate just the IPv6 Connection (IPoE) while subscribing to an applicable connection service.
    If you are canceling the applicable connection service due to switching of ISPs, etc., you are asked to deactivate the feature.
  • For the additional IPv4 over IPv6 Connection (DS-Lite), you can activate/deactivate according to your use.
  • After deactivating the IPv4 over IPv6 Connection (DS-Lite), setup for IPv4 connection (PPPoE) is required.
    If you have not completed your connection setup, please do so by referring to the setup guide of the respective connection service.

Other

This section gives you other IPv6 Connection Feature-related information.

Outbound Port 25 Blocking

Asahi Net is blocking Port 25 to shut the path for spam email in order to provide safe internet environment to our members.
Internet connections using the IPv6 Connection Feature is subject to Outbound Port 25 Blocking.
See the Outbound Port 25 Blocking page for more details.

Services which do not support the IPv4 over IPv6 Connection (DS-Lite)

The following services offered with IPv4 connection (PPPoE) are unavailable with the additional IPv4 over IPv6 Connection (DS-Lite).

  • Fixed IP Address Option
  • Pre-Allocation of Fixed IP Address
  • IP-Phone-C
Limitations in communications and functions
  • Communications through a port with a specific port number (set by members)
  • Dynamic DNS Service
  • Publishing servers which exist in members’ LAN to the internet etc.
Limitations due to the type of Hikari Denwa

If the fiber-optic line and Hikari Denwa falls to the following, you may not be able to use the IPv4 over IPv6 Connection.

  • Using a fiber-optic line with a fiber-optic line ID starting with COP.
  • Subscribed to Hikari Denwa before September 2014.

If you are using the above Hikari Denwa with Type 1, please change to Type 2.
Please note that you may need to change your Hikari Denwa-supported device when changing the types.

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