IPv6 products, community and services

Use Cases

Deploying IPv4 Using IPv6

Overview

gogo6 has developed new family of products that enables deployment of IPv4 networks using IPv6 technology. The new family of products was developed as a result the latest developments in IPv4 address allocations trends and as a more direct response to the customers request for this type of products. The products offered by gogo6 allow operators to deploy networks based on either IPv4 or IPv6, while enabling full provision of both protocols towards end users.

Given the current IPv4 address rate consumption, it is inevitable that IPv4 addresses are going to be exhausted in the next 2-3 years. To prepare for a future scenario where IPv4 addresses are hard, or simply too expensive, to obtain, many operators are considering deploying IPv6-only access and core networks. Main advantages of deploying Ipv6-only access networks are to secure for future network growth and to prevent having to deploy and operate private IPv4 networks based on Network Address Translators (NAT) that are hard to maintain.

However, since most of the Internet and many of intranets, will, in a post IPv4 depletion world, be reachable over IPv4 only, it is of great importance to provide IPv4 support to end users, even if access and core networks are IPv6-only. To enable this deployment scenario, gogo6 provides technology that enables operators to deploy pure IPv6 access and core networks, while continuing to support Ipv4-only capable end users.

Network Topology

Presently, IPv4 is the dominant protocol on the Internet. The only option to expand existing network, to deploy new applications and new revenue generating services, to add new customers is by deploying new IPv4 networks. All new deployed network base have a natural life- and replacement-cycle. In the wake of IPv4 address depletion situation, many operators are looking into deploying new IP networks in such a manner that will allow the newly deployed networks to operate in an IPv6 dominant world, while still providing IPv4 services to end customers.

gogo6 has developed technology that enables operators to deploy and expand native IPv6 networks, while fully supporting IPv4 applications and the existing end users.

The new technology is available in two different versions, DSTM and DS-lite. Both use tunneling of IPv4 in IPv6 (4in6) to connect local IPv4 hosts or networks over an IPv6 infrastructure.

DS-lite

Dual-stack lite (DS-lite) is going to be one of the main methods of providing IPv4 support when IPv4 addresses are running out. It uses 4in6 tunnels to send traffic to a DS-lite server which NATs the traffic inside the tunnel.

The main difference with DS-lite in comparison to the other tunneling solutions is that it doesn't require a tunnel setup and will only consume resources when actual traffic is sent through the DS-lite server. This makes easier to maintain DS-lite support for a large number of users using a limited set of servers as IPv4 traffic diminishes.

When deployed in an IPv6-only network, a dual-stack host can obtain IPv4 connectivity through either gogoCLIENT installed directly on the host or through the gogoCPE deployed in the IPv6-only access network. The gogoCPE allows for provision of IPv4 to several hosts simultaneously which make it suitable for SOHO deployments where changes to end hosts are not an option.

DS-lite is supported by both gogoSERVER and gogoCLIENT product families.

DSTM

Dual-Stack Transition Mechanism (DSTM) technology is another tunneling method for providing IPv4 support over an IPv6 infrastructure. DSTM is an negotiated way of setting up tunnels which is efficient, easy to provision and requires little maintenance for large scale deployments. IPv4 tunneling using DSTM technology is supported by both gogoSERVER and gogoCLIENT product families.

As part of the setup of the tunnel the client can either be provided a private or an public IPv4 address which provides the flexibility to offer different service to different users using the same technology. This is different compared to DS-lite which is intended to function with low overhead and therefore doesn't use any tunnel setup.

Product Information

Provisioning of IPv4 access to end users over IPv6-only access and core networks is enabled by; gogoSERVER Advanced and gogoCPE and gogoCLIENT products.

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