Reverse mapping & Nibble labels
example of an IPv6 address
3ffe:1900:4545:2:2d0:9ff:fef7:6d2c
This would map in the IPv6 .ip6.int. tree as follows.
c.2.d.6.7.f.e.f.f.f.9.0.0.d.2.0.2.0.0.0.5.4.5.4.0.0.9.1.e.f.f.3.ip6.int. PTR ns.example.com.
- IPv6 Reverse delegation with ip6.int. is described in rfc 1886
- Nibble labels are also described in rfc 1886
Nibble = 4 bits presented by a hexadecimal number.