On Fri, Apr 01, 2016 at 02:20:47PM -0700, David Ranch wrote:
> >netrom      FH2LOR-2        svnnah   235     netrom
> /etc/ax25/nrports Looks ok.
> >axport0      5       192     100     0
> /etc/ax25/nrbroadcast looks ok but maybe try renaming this to say "axport".
> Maybe the trailing 0 is messing things up. Be sure to update the
> /etc/ax25/axports file with the same name too

Problem is that there are multiple ax25 ports. I'll replace it with an
'l' (for lora).

> >axport0      FH2LOR-1        115200  254     8       AX.25 over LoRa
> Looks ok though what is the RF link speed you're using?  I've seen some
> funny buffering problems in the past so I actually use 9600 baud to the TNC
> for a 1200baud RF link

The rf-link is lora and I think it is around 300bps. The speed to the
tnc is 115k2 because of overhead and practical reasons.

> >Unfortunately it still fails:
> >root@savannah:~# modprobe netrom
> >root@savannah:~# nrattach netrom
> >nrattach: cannot find free NET/ROM device
> 
> What do you have in /etc/ax25/nrbroadcast

axports: axportl FH2LOR-1        115200  254     8       AX.25 over LoRa
nrports: netrom      FH2LOR-2        svnnah   235     netrom
nrbroadcast: axportl 5       192     100     1

> Are you sure the netrom module is loaded? Check:
> $ lsmod | grep netrom
> netrom                 47709  2
> ax25                   65384  16 netrom,mkiss

root@savannah:/etc/ax25# lsmod  |grep netrom
netrom                 40573  0 
ax25                   60033  4 mkiss,netrom

root@savannah:/etc/ax25# nrattach -i 192.168.6.2 -m 236 netrom
nrattach: cannot find free NET/ROM device

> The way I load my system via my packetrig.sh startup script, I use:
> $NRATTACH -i $AMPRIP -m 236 $VHFD710NRPORT
> I would also recommend you to show each of the commands you're using to load
> up your stack:
>    - Are you using the mkiss approach with PTYs or using kissattach
> directly?

Kissattach directly:

/usr/sbin/kissattach -l /dev/ttyUSB0 axport0 192.168.5.2
sleep 5
/usr/sbin/ax25d -l
/usr/sbin/beacon -t 1 -l axport0 'AX.25 over LoRa - contact [email protected] 
for info'
/sbin/modprobe netrom
/usr/sbin/nrattach -i 192.168.6.2 -m 236 netrom
/usr/sbin/netromd -i -l -t 20
/usr/bin/nohup /usr/bin/axlisten -a -r -8 -t >> /home/folkert/ax25-lora.log &
/usr/sbin/mheardd -l -n 1000

>    - Are you seeing any errors when you run each command?

Something odd happened: now it suddenly works!
What I did different is axportl instead of axport0.
But on the other system axport0 runs fine? Puzzling.


Folkert van Heusden

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