July 2002
Beginner
360 pages
11h 19m
English
Content preview from IPv6 EssentialsBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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IPv6 Alive
There are already a surprising number of global test networks and even commercial networks running over IPv6. I discuss some interesting examples in the next sections. In order to describe what they are doing, I use some IPv6-specific terms that are probably not familiar to you yet. They are all explained in this book.
Tip
In February 2002 over 120 production networks have been allocated IPv6 address prefixes. For a current list, refer to http://www.dfn.de/service/ipv6/ipv6aggis.html.
The 6Bone
The 6Bone started out as a network of IPv6 islands working over the existing IPv4 infrastructure of the Internet by tunneling IPv6 packets in IPv4 packets. The tunnels were mainly statically configured point-to-point links. The 6Bone became a reality in early 1996 as a result of an initiative of several research institutes. The first tunnels were established between the IPv6 laboratories of G6 in France, UNI-C in Denmark, and WIDE in Japan.
Structure of the 6Bone
The 6Bone is structured as a hierarchical network of two or more layers. The top layer consists of a set of backbone transit providers, called pseudo Top Level Aggregators (pTLAs), which use BGP4+ as a routing protocol. The bottom layer is comprised of leaf sites connected via the 6Bone. Zero or more intermediate layers, called pseudo Next Level Aggregators (pNLAs), interconnect leaf sites and the pTLA backbone networks.
Addressing
IPv6 unicast addressing of node interfaces (for both end systems and routers) is based ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.