The ax25-tools package contains the tools that you need to get going with AX.25 for Linux. AX.25 is a network protocol that is used by hamradio operators across packet radio wireless links. This package contains the network tools to configure hamradio interfaces and some of the hamradio specific network daemons. In addition to programs that understand AX.25, they also work with ROSE and Net/ROM hamradio protocols.
