Although IPv6 has been "out there" since the late 1990s, and IPv4 address depletion has basically occurred, organizations and companies have been slow to adopt and adapt to the new 128-bit addressing standard, and all of its enhanced services, security, and gajillions of addresses available. The newly revised CCNA ICND1 version 2 exam finally puts IPv6 front and center, and includes questions directly focused on the new stack. What does this mean for rank and file IT workers?
Look for the IPv6 Logo to be showing up on
equipment and networks near you.
The question then becomes: "Where can you go to come up to speed on IPv6?" Where the ICND1v2 exam is concerned, of course, you can get plenty of great information and training from the Cisco training course and also from the companion Cisco Press volumes:
But first, you may want to get grounded in basic IPv6 concepts, terminology, and addressing. I have some suggestions to make to assist in that process:
1. First and foremost, investigate the great and free IPv6 certification program available from Hurricane Electric (an esteemed ISP that's been purveying IPv6 services and access for over a decade, which probably has the greatest concentration of in-depth large-scale IPv6 routing and networking expertise in the world today). Working through their program to at least the Administrator level, if not all the way to "Sage" (a great label for a pinnacle level credential if ever I saw one) will get you up and going with IPv6, both in terms of theory and concepts and in terms of hands-on interface, route, and device configuration.
2. Check out Anthony Sequeira's excellent "IPv6 According to ICND1 Version 2" article right here on PITC. He explains basic concepts and address layouts, talks about changes to the IP environment introduced for IPv6, and digs into static routing and OSPFv3 issues relevant to the CCENT/ICND1v2 exam.
3. Check out our college textbook "Guide to TCP/IP," fourth edition, where protocol mavens Jeff Carrell and Laura Chappell (and I) take our Wireshark-oriented, hands-on, trace-it-yourself approach to IP protocols and update the coverage for basic IPv6 protocols and services. For those inclined to learn on their own, and also to learn by doing and digging in, this is a great reference and resource.
There's a lot more where that came from, but it's enough to get you going for sure. If you want more in this vein, post a comment or drop me an e-mail, and I'll follow up this post with another set of nonpareil IPv6 resources.