From folkert at vanheusden.com  Thu Mar 31 17:08:21 2016
From: folkert at vanheusden.com (folkert)
Date: Thu, 31 Mar 2016 23:08:21 +0200
Subject: [Linux-ham] netrom
Message-ID: <20160331210821.GW25136@belle.intranet.vanheusden.com>

Hi,

I'm trying to get netrom working.
Somehow it always fails:

root at savannah:~# modprobe netrom
root at savannah:~# nrattach nr0
nrattach: cannot find free NET/ROM device

Before that, no nrattach was running and also the netrom module was not
loaded.

/etc/ax25/nrports contains:
nr0      FH2LOR-2        svnnah   235     netrom

/etc/ax25/nrbroadcast contains:
ax0	5	192	100	1

and /etc/ax25/axports contains:
ax0	FH2LOR-1	115200	254	1	AX.25 over LoRa

dmesg says:
[ 8780.389979] NET: Registered protocol family 6

ifconfig of ax0:
root at savannah:~# ifconfig ax0
ax0       Link encap:AMPR AX.25  HWaddr FH2LOR-1  
          inet addr:192.168.5.2  Bcast:192.168.5.255  Mask:255.255.255.0
          UP BROADCAST RUNNING  MTU:254  Metric:1
          RX packets:925 errors:0 dropped:0 overruns:0 frame:0
          TX packets:343 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:10 
          RX bytes:36408 (35.5 KiB)  TX bytes:22806 (22.2 KiB)

after the netrom module was loaded I get 4 'nrx' devices:
nr0       Link encap:AMPR NET/ROM  HWaddr   
          UP RUNNING NOARP  MTU:236  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
... upto nr3

any ideas?