IPv6

Address Space

Minimum direct allocation is currently /32.

ISP assignments are as follows:

/64 when it is known that one and only one subnet is needed.
/56 for small sites, those expected to need only a few subnets over the next 5 years.
/48 for larger sites

340,282,366,920,938,463,463,374,607,431,768,211,456 unique IPs
42,535,295,865,117,307,932,921,825,928,971,026,432 IPs in 2000::/3 (1/8^th of total address space)
1,208,925,819,614,629,174,706,176 IPs in a /48
536,870,912 /32 prefixes within 2000::/3
65,536 /48 prefixes with a /32
65,536 /64 subnets within a /48
35,184,372,088,832 /48 prefixes within 2000::/3
8,192 IPv6 /48 prefixes for every IPv4 address in 2000::/3 alone.
18,446,744,073,709,551,616 IPs within a /64 subnet

This network has been assigned the prefix 2610:78:ad::/48, it is currently utilized as follows:

2610:78:ad::/56 - Home
- 2610:78:ad::/64 - Future server block
- 2610:78:ad:1::/64 - Ethernet LAN
- 2610:78:ad:2::/64 - Wireless LAN
2610:78:ad:100::/56 - Beaumont
2610:78:ad:200::/56 - Leduc
2610:78:ad:ff00::/56 - Tunnels
- 2610:78:ad:ff00::/64 - Home to Beaumont
  - 2610:78:ad:ff00::1 - Home
  - 2610:78:ad:ff00::2 - Beaumont
- 2610:78:ad:ff01::/64 - Home to Leduc

faithd can be used to translate on a per service basis.
ptrtd is a similar and better solution, but only appears to run on Linux at this time.
NAT-PT is also an option but it has been deprecated.
Using one of the above, totd is still required to translate DNS.

Date	Relevance
Mar 1996	6bone started
Jan 1, 2004	6bone prefix allocations halted.
Jul 20, 2004	Experimented with Freenet6 and Hurricane Electric tunnels
Jun 6, 2006	6bone prefix phased out (3FFE::/16)
Oct 15, 2007	IPv6 6to4 setup
Dec 17, 2007	Tera-Byte prefix (2610:78:ad::/48)
Feb 4, 2008	IPv6 records added to DNS root