The ROSE packet layer protocol is similar to layer three of the X.25
specification. The kernel based ROSE support is a modified version of the
FPAC Rose implementation.
The ROSE packet layer protocol protocol relies on, and uses the AX.25 ports
you have created. The ROSE protocol rides on top of the AX.25 protocol.
To configure ROSE you must create a configuration file that describes the
ROSE ports you want. You can create multiple ROSE ports if you wish, the same
procedure applies for each.
The file where you configure your ROSE interfaces is the
/etc/ax25/rsports file. This file describes the ROSE port in much
the same way as the /etc/ax25/axports file describes the AX.25 ports.
This file is formatted as follows:
Where:
- name
is the text name that you wish to refer to the port by.
- address
is the 10 digit ROSE address you wish to assign to this port.
- description
is a free text description of the port.
An example would look something like the following:
rose 5050294760 Rose Port |
Note that ROSE will use the default callsign/ssid configured on each
AX.25 port unless you specify otherwise.
To configure a separate callsign/ssid for ROSE to use on each port you
use the rsparms command as follows:
# /usr/sbin/rsprams -call VK2KTJ-10 |
This example would make Linux listen for and use the callsign/ssid
VK2KTJ-10 on all of the configured AX.25 ports for ROSE calls.
When you have created the /etc/ax25/rsports file
you may create the ROSE device in much the same way as you did for the
AX.25 devices. This time you use the rsattach
command. The rsattach command creates network
devices named `rose[0-5]'. The first time you use
the rsattach command it create the
`rose0' device, the second time it creates the
`rose1' device etc. For example:
This command would start the ROSE device (rose0) configured with the
details specified in the /etc/ax25/rsports file for the entry
named `rose'.
The ROSE protocol currently supports only static routing. The rsparms
utility allows you to configure your ROSE routing table under Linux.
For example:
# rsparms -nodes add 5050295502 radio vk2xlz |
would add a route to ROSE node 5050295502 via an
AX.25 port named `radio' in your
/etc/ax25/axports file to a neighbour with the
callsign VK2XLZ.
You may specify a route with a mask to capture a number of ROSE destinations
into a single routing entry. The syntax looks like:
# rsparms -nodes add 5050295502/4 radio vk2xlz |
which would be identical to the previous example except that it would match
any destination address that matched the first four digits supplied, in this
case any address commencing with the digits 5050. An alternate form
for this command is:
# rsparms -nodes add 5050/4 radio vk2xlz |
which is probably the less ambiguous form.
