Blog entries for "AFTR"

DS-Lite architecture: overview and automatic configuration

Dual Stack Lite is an architecture that allows IPv4 services to be provided in an IPv6 network, despite a limited amount of available IPv4 addresses. Work on DS-Lite was conducted within the Softwires working group in the IETF, and began in late 2008. After many revisions it was recently published as RFC6333, with its companion RFC6334 dedicated to automated configuration.

An Ending and An Opportunity

A new milestone in the history and evolution of the Internet has passed: On Thursday, February 3, 2011, it was announced that the Internet Assigned Numbers Authority (IANA), steward of the Internet's reserves of unassigned IP addresses, has distributed the final blocks of IPv4 addresses to the Regional Internet Registries (RIRs). The RIRs, based in North America, Europe, Asia, South America, and Africa, will now allocate them, according to rules developed in each region, to service providers and enterprises worldwide. And then all of the IPv4 addresses will be in use.

Implementing IPv6 is no longer optional

The exhaustion of IPv4 space from IANA is coming as soon as February (yes, next month!) and the reserve held by the RIRs will be running dry shortly thereafter. The ability to provide (and use) IPv6 infrastructure is no longer optional; it is a requirement.

Some ideas from the AFTR implementation

I'd like to share an idea I implemented for AFTR (so I am describing it in the AFTR context) which is a part of the debug primer and which could be integrated into BIND 10.
 
AFTR is managed through control channels (over TCP or a stream Unix socket) like a BIND 9 rndc but in a connected mode (so on the AFTR side it is named "sessions").