named.conf:

  zone "1.0.0.7.0.8.d.7.2.0.3.b.0.4.d.f.ip6.arpa." {
    type master;
    file "local/fd40:b302:7d80:7001::_64.rev";
  };


local/fd40:b302:7d80:7001::_64.rev:

[soa records and stuff]

4.f.c.b.1.9.e.f.f.f.b.5.9.0.2.0 IN PTR foo.example.com