Netrom-Node(1).pdf

Netrom−Node mini−Howto

Table of Contents

Netrom−Node mini−Howto. ...............................................................................................................................1

Karl Larsen, k5di@yahoo.com. ..............................................................................................................1

1. Introduction. .........................................................................................................................................1

2. How to Begin. ......................................................................................................................................1

3. Some Details of the AX.25 Utilities. ...................................................................................................1

4. Setting Up Netrom. ..............................................................................................................................1

5. Setting Up FBB and DXNet:. ..............................................................................................................1

1. Introduction. .........................................................................................................................................1

2. How to Begin. ......................................................................................................................................1

3. Some Details of the AX.25 Utilities. ...................................................................................................2

4. Setting Up Netrom. ..............................................................................................................................3

5. Setting Up FBB and DXNet:. ..............................................................................................................4

Netrom−Node mini−Howto

Karl Larsen, k5di@yahoo.com

v1.10, 19 October 1998

This document describes how to setup the ax25−utilities package for Amateur Radio such that it makes

Netrom Nodes for the Node program and the BBS software from John−Paul Roubelat, F6FBB. The DOS

G8BPQ Switch makes a bbs node and many features, it was expected that the Linux ax25−utils would have a

similar capability. This was not the case. Help came from John Ackerman, N8UR who put a message on the

Linux−Ham SIG that he had done the BBS node and the info was on his web site! When the information was

tried it didn't work properly but much was learned about the technique. Help from Tomi Manninen, OH2BNS

did the trick. Nodes for the BBS and the Node and the DX Cluster were made and work fine.

1. Introduction

2. How to Begin

3. Some Details of the AX.25 Utilities

4. Setting Up Netrom

5. Setting Up FBB and DXNet:

1. Introduction

It is possible, using just the ax25−util's to generate node listings for the Node application and the FBB BBS

and the DXNet DX Cluster. This is done by changing the configuration files for Netrom and making a

Netrom entry for each application. At present there is a kernel imposed limit of 4 Netrom entries. The new

kernels are expected to drop this limit.

Now users look for CRUCES:K5DI−4 and LCBBS:K5DI−3 and LCDX:K5DI−5 on the many nodes here in

New Mexico, Texas and Arizona and are connected like magic. They no longer need to remember anything.

2. How to Begin

Obtain and read the AX25−HOWTO:

ftp: /sunsite.unc.edu/pub/Linux/docs/HOWTO/AX25−HOWTO/

Netrom−Node mini−Howto

Netrom−Node mini−Howto

Using the AX25−HOWTO set up the normal Amateur Radio ax.25 and Netrom system and make certain it is

operating properly. When the software "CALL" can be used to make either a ax25 or Netrom connection to a

distant node, the system is ready to change to one using node listings like the BPQ Switch.

3. Some Details of the AX.25 Utilities

Below is a list of all the applications and files that are needed to set up a working ax.25 system. The

Applications are all in the /usr/sbin/ directory and the Configuration files are in the /etc/ax25/ directory. Note:

Kissattach is used only if you have TNC's in the Kiss Mode.

· call Application

kissattach Application

· ax25d Application

· ax25d.conf Configuration file

· axspawn Application

· axspawn.conf Configuration file

· axports Configuration file

There are several names that a ax25−util user must invent. Since this paper uses the files of k5di, a listing of

those names can be made.

Name Call−sign Alias Other

ax0 k5di−9 ax25 9600 baud

ax1 k5di−10 ax25 1200 baud

Netrom k5di−1 #CRUCE Real Netrom

netnod k5di−4 CRUCES Node node−list

netbbs k5di−3 LCBBS BBS node−list

netdx k5di−5 LCDX DX−Cluster

It's a good idea to make a list like this on paper before you start to change things. It is easy to put the wrong

name in a control file.

Kissattach is an application that connects the kernel to the TNC, sets the tcp/ip address up, sets the speed of

the connection, and is given the serial port to use.

Axports is a file that defines the name of the ax.25 ports and tells kissattach what call−sign, baud−rate and

window size to use. Below is an example of a 2 TNC system.

# /etc/ax25/axports

# Be very careful with the speed setting. This is the speed in

# bits/second that data passes from the computer to the TNC, and has

# nothing to do with the radio baud rate!

# The format of this file is:

# name call−sign speed paclen window description

ax0 K5DI−9 9600 255 3 445.1 (9600 bps)

ax1 K5DI−10 9600 255 1 145.07 (1200 bps)

3. Some Details of the AX.25 Utilities

Netrom−Node mini−Howto

AX25D is the application that reads the ax25d.conf Configuration file and answers calls made to the system.

Below is a sample ax25d.conf that has no Netrom defined. In fact all it will do is answer calls to k5di−9 and

k5di−10. When it answers it starts the node application and logs the caller in.

# /etc/ax25/ax25d.conf

# AX25D Configuration File.

# AX.25 ports begin with a '['.

[k5di−4 VIA ax0]

default * * * * * 0 − root /usr/sbin/node node

[k5di−4 VIA ax1]

default * * * * * 0 − root /usr/sbin/node node

The next step is to get ax25d to answer a call to the alias CRUCES as well as the call−sign. This is easy to do

and is shown below:

# /etc/ax25/ax25d.conf

# AX25D Configuration File.

# AX.25 ports begin with a '['.

[CRUCES VIA ax0]

default * * * * * 0 − root /usr/sbin/node node

[k5di−4 VIA ax0]

default * * * * * 0 − root /usr/sbin/node node

[CRUCES VIA ax1]

default * * * * * 0 − root /usr/sbin/node node

[k5di−4 VIA ax1]

default * * * * * 0 − root /usr/sbin/node node

If you have trouble, as root kill ax25d if it is running and then at the prompt type ax25d &. As ax25d loads

the ax25d.conf file it will print out any errors it finds. This print out is very accurate and tells you which row

in the file is wrong.

A connect from any adjacent node to k5di−4 or CRUCES will connect to the k5di node. But Netrom is not

transmitting a node listing for CRUCES or k5di−4. This is done by changing some Netrom Configuration

files.

4. Setting Up Netrom

Netrom has applications and files that control it's function and to achieve the G8BPQ look and function we

must use these in ways never intended. Below is a list of these components of Netrom:

· netromd Application

nrattach Application

· nrports Configuration File

· nrbroadcast Configuration File

4. Setting Up Netrom

Plik z chomika:

Inne pliki z tego folderu:

Inne foldery tego chomika: