IPv6 Tunnel Overview
Every network administrator needs to have a strategy to address the transition to the IPv6
Internet. Various
transition mechanisms
have been defined that are intended to make it as easy
as possible for organizations to get on the IPv6 Internet using their current IPv4 network
infrastructure. For many organizations, the easiest and fastest way to get applications up and
running on the IPv6 Internet is to use a transition mechanism called an
IPv6 tunnel
.
One of the most common issues when an organization begins to support IPv6 is how to allow IPv6
enabled devices to communicate over those portions of the network that are not IPv6 enabled.
This can include both portions of a corporate intranet as well as Internet connections managed by
an Internet Service Provider (ISP) that does not yet provide IPv6 connectivity.
An
IPv6 tunnel
solves this issue by encapsulating IPv6 packets inside IPv4 packets for
transmission over IPv4-only connections.
An IPv6 tunnel is obtained through an IPv6
tunnel broker
. An IPv4 connection is established
between a system at your site (in this case, an Equalizer) and a system at the tunnel broker’s site.
Clusters on Equalizerare assigned IPv6 addresses within the subnet assigned by the tunnel broker.
Clients can then access the IPv6 cluster address through the tunnel.
There are a number of tunnel brokers providing IPv6 tunnels to various geographical regions. In
general, you should pick a tunnel broker that maintains tunnel servers that are geographically
close to your location for best performance.
This chapter describes how you can set up an IPv6 tunnel. Hurricane Electric (HE), one of the
leading IPv6 tunnel brokers, provides an easy way to configure a tunnel that uses the
6in4tunneling protocol
. Note that a 6in4 tunnel from any tunnel broker can be used and requires
the same basic commands on Equalizer to establish your tunnel -- only the required setup on the
tunnel broker’s website will be different. Hurricane Electric offers an easy to use web interface
that allows you to request and configure a tunnel usually within a few hours.
Note that a number of different tunneling protocols exist, and the tunneling protocols supported
vary between tunnel brokers, so check a tunnel broker’s website to be sure they support 6in4
tunnels before you request one.
Copyright © 2014 Coyote Point Systems, A Subsidiary of Fortinet, Inc.
All Rights Reserved.
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