<HTML ><HEAD ><TITLE >Configuring the user_call programs</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.63 "><LINK REL="HOME" TITLE="Linux Amateur Radio AX.25 HOWTO" HREF="index.html"><LINK REL="PREVIOUS" TITLE="Configuring the pms" HREF="x1914.html"><LINK REL="NEXT" TITLE="Configuring the ROSE Uplink and Downlink commands" HREF="x1990.html"></HEAD ><BODY CLASS="SECT1" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#840084" ALINK="#0000FF" ><DIV CLASS="NAVHEADER" ><TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >Linux Amateur Radio AX.25 HOWTO</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="x1914.html" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="x1990.html" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><DIV CLASS="SECT1" ><H1 CLASS="SECT1" ><A NAME="AEN1958" >16. Configuring the <EM >user_call</EM > programs</A ></H1 ><P >The `<EM >user_call</EM >' programs are really called: <EM >ax25_call</EM > and <EM >netrom_call</EM >. They are very simple programs designed to be called from <EM >ax25d</EM > to automate network connections to remote hosts. They may of course be called from a number of other places such as shell scripts or other daemons such as the <EM >node</EM > program.</P ><P >They are like a very simple <EM >call</EM > program. They don't do any meddling with the data at all, so the end of line handling you'll have to worry about yourself.</P ><P >Let's start with an example of how you might use them. Imagine you have a small network at home and that you have one linux machine acting as your Linux radio gateway and another machine, lets say a BPQ node connected to it via an ethernet connection.</P ><P >Normally if you wanted radio users to be able to connect to the BPQ node they would either have to digipeat through your linux node, or connect to the node program on your linux node and then connect from it. The <EM >ax25_call</EM > program can simplify this if it is called from the <EM >ax25d</EM > program.</P ><P >Imagine the BPQ node has the callsign <TT CLASS="LITERAL" >VK2KTJ-9</TT > and that the linux machine has the AX.25/ethernet port named `<TT CLASS="LITERAL" >bpq</TT >'. Let us also imagine the Linux gateway machine has a radio port called `<TT CLASS="LITERAL" >radio</TT >'.</P ><P >An entry in the <TT CLASS="LITERAL" >/etc/ax25/ax25d.conf</TT > that looked like:</P ><P ><TABLE BORDER="1" BGCOLOR="#E0E0E0" WIDTH="100%" ><TR ><TD ><FONT COLOR="#000000" ><PRE CLASS="SCREEN" >[VK2KTJ-1 via radio] default * * * * * * * root /usr/sbin/ax25_call ax25_call bpq %u vk2ktj-9</PRE ></FONT ></TD ></TR ></TABLE ></P ><P >would enable users to connect direct to `<TT CLASS="LITERAL" >VK2KTJ-1</TT >' which would actually be the Linux <EM >ax25d</EM > daemon and then be automatically switched to an AX.25 connection to `<TT CLASS="LITERAL" >VK2KTJ-9</TT >' via the `<TT CLASS="LITERAL" >bpq</TT >' interface.</P ><P >There are all sorts of other possible configurations that you might try. The `<EM >netrom_call</EM >' and `<EM >rose_call</EM >' utilities work in similar ways. One amateur has used this utility to make connections to a remote BBS easier. Normally the users would have to manually enter a long connection string to make the call so he created an entry that made the BBS appear as though it were on the local network by having his <EM >ax25d</EM > proxy the connection to the remote machine.</P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="x1914.html" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="x1990.html" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >Configuring the <EM >pms</EM ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" > </TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >Configuring the ROSE Uplink and Downlink commands</TD ></TR ></TABLE ></DIV ></BODY ></HTML >