An excellent panel session on IPv6 was held at IETF88 (Nov 2013), on IPv6 – What Does Success Look Like? See it on YouTube (starts 3.00 mins in). The panel was moderated by Leslie Daigle, Chief Internet Technology Officer, ISOC. Panel members were John Brzozowski from Comcast Cable, Erik Nordmark from Arista Networks, and Chris Palmer from Microsoft. IPv6Now’s Professional Services Manager Michael Biber has provided this summary: LD: Good … Continue reading
In Exponential IPv6 Part II, I looked at the recent rise in IPv6 uptake, which appears to be in the early stages of the S-shaped technology adoption curve. This starts out slowly, rises exponentially, slows again as the technology approaches saturation, and tapers off. In a talk at the recent Australian IPv6 Summit 2012, Fred Baker showed a version of this curve (right) with some surprising observations (2.5MB pdf). He … Continue reading
So you have an application. It was written (as far as you know) without IPv6 in mind, and now it has to work with IPv6. How hard is that going to be? Well, it depends on the application. Most of the following is not really Java specific (but some of it is).
ULA (Unique Local Addresses, or Unique Local IPv6 Unicast Addresses to give them their full name) are IPv6’s equivalent of IPv4’s “private” addresses. The idea is to append a random 40 bits to the reserved ULA prefix fd00::/8, thus building a /48 that you can call your own. You can use this /48 wherever and however you like, with the sole proviso that it must not be routed on the … Continue reading
Why Not NAT? NAT came into existence because of IPv4 address scarcity. With IPv6, that reason disappears. So, if we no longer need to multiplex addresses, should we retain NAT?