System Administration Guide: IP Services

ipnodes Database

The ipnodes database contains the IPv6 addresses and host names of machines on your network. If you use the NIS, NIS+, or DNS name services (or LDAP as a name service), the ipnodes database is maintained in a database that is designated for host information. For example, on a network that runs NIS+, the ipnodes database is maintained in the host table. For more information about the ipnodes database, see /etc/inet/ipnodes File.