ROSE protocol is based on X25 and allows fast and efficient packet switching with a very small protocol overhead (only three bytes).
Before configuring and running FPAC, the AX25 and ROSE kernel must have been installed and running.
If you need more information on AX25 and ROSE, read carefully Terry's AX25-HOWTO. Parts of this documentation are taken from this HOWTO.
This document refers to FPAC version 3.09.
To day this document is only available with FPAC distribution.
There is a lot of related documentation. There are many documents that relate to Linux networking in more general ways and I strongly recommend you also read these as they will assist you in your efforts and provide you with stronger insight into other possible configurations.
More general Linux information may be found by reference to other Linux HOWTO documents.