HP-UX SNAplus2 NOF Programmer's Guide

Writing NOF Applications
Description of the NOF API Entry Points
Chapter 2 97
In particular, if the application that issued CONNECT_NODE later
forks to create a child process, the child process cannot issue any NOF
verbs that use the target handle obtained by the parent process.
However, the child process can issue another CONNECT_NODE to
obtain its own target handle.