Re: What transition?
"And the "this requires that everybody be retrained" bit is actually the real killer, because IPv6 obsoletes any knowledge of how networking works. You have people in IT who have paid multiples of their yearly salary to go on all the CCNA courses and the people who have just figured it out themselves. The people who have been on the training courses (or their employers) don't want to pay for another set of training courses and the people who haven't done the training don't want their hard earned knowledge obsoleted. And the beancounters refuse to pay silly money for new equipment (firewalls, modems, wap's etc) because it costs too much."
Actually, for the most part IPv6 works exactly the same as IPv4, other than larger addresses. There are differences, such as fixed length headers and extension headers, which improve router performance, ICMP6 is used for a lot more than ICMP in IPv4, which rationalizes a lot of things, including getting rid of ARP, which actually predates IP. There are other things that improve security too. As for Cisco certification, IPv6 has been part of the curriculum for several years, so anyone with a current certification should know IPv6.
If you're doing a massive rewrite of networking code then do it right and start from scratch, rather than building in more hacks.
Biting the hand that feeds IT
