TECHNICAL INFORMATION
IPv6v4 Exchange Service
TECHNICAL INFORMATION
IPv6v4 Exchange Service
Offering IPv4 service over IPv6 networks
The concept of IPv6v4 Exchange Service
With the aim of reducing the burden on ISPs with regard to issues related to global IPv4 address exhaustion, JPIX will offer a solution that allows ISPs to provide services without having to build and operate Carrier Grade NAT (CGN) facilities on their network.
The role of Internet eXchange in the IPv4/IPv6 coexistence situation
When the Internet transitions from IPv4 to IPv6, Internet service providers (ISPs) need to address two issues: the deployment of IPv6 service and solutions to the problem of IPv4 address exhaustion.

With the aim of supporting IPv6 service deployment for ISPs, JPIX has been working to develop technical solutions to IPv4 address exhaustion to be offered as outsourcing services. These solutions would only be required during the period leading up to full transition to IPv6. In addition, the results obtained have been proposed to the IETF, and efforts aimed at standardization are currently underway.

In the topology of the Internet, the fundamental function of IX (Internet eXchange) is to provide an environment that allows interconnection and traffic exchange between ISPs. During the period when IPv4 and IPv6 coexist on the Internet, JPIX believes it is necessary and important to provide an environment that allows interconnection between the IPv4 network and the IPv6 network.
Things What is the IPv6v4 Exchange Service?
The IPv6v4 Exchange Service provides an environment for an IPv4 network and an IPv6 network to interconnect. The 464XLAT architecture is used for IPv4/IPv6 translation to provide connectivity to IPv4 only (IPv6 not supported) servers from end user nodes over the IPv6 Internet.
*464XLAT: An architecture that combines existing stateless protocol translation (RFC 6145) and existing stateful protocol translation (RFC 6146) to support shared global IPv4 addresses.
http://tools.ietf.org/rfc/rfc6877.txt
IPv6v4 Exchange Service Outline
PLAT (Provider side translator)
PLAT is a translator (for translating IPv6 addresses to global IPv4 addresses) to be installed in the core network. It complies with stateful translation (RFC 6146) and uses a pool of addresses (global IPv4 addresses) that are shared among multiple end users.
CLAT (Customer side translator)
CLAT is a translator (for translating private IPv4 addresses to IPv6 addresses) to be installed at end users’edge. It complies with stateless translation (RFC 6145).
IPv6v4 Exchange Service (Trial Service) Content
JPIX is now offering a trial service to ISPs that subscribe to JPIX’s IX Port (Dual Stack Port or IPv6 Native Port) services.
CLAT (the home gateway for the trial service) will be leased for free to those ISPs that participate in this trial service.