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Caleb Pal cleb at defcon-3.netSteve,
I would strongly suggest you look at your configuration file and
http://openbsc.osmocom.org/trac/wiki/osmo-nitb_VTY. There are a few
parameters you need to set. It appears from the output you provided that
there is a mismatch between the band setting in the configuration file and
what the BTS actually supports.
In addition to the band setting, I would adjust the max_power_red setting
for the TRX. For bench testing this allows you to decrease the TX power and
coverage of the BTS so you do not attract unwanted handsets, or worse.
Regards,
Caleb
-----Original Message-----
From: openbsc-bounces at lists.osmocom.org
[mailto:openbsc-bounces at lists.osmocom.org] On Behalf Of Stephen Siadak
Sent: Tuesday, September 13, 2011 0643
To: openbsc at lists.osmocom.org
Subject: some issues configuring openbsc
While I think I am pretty close to getting my ip.access nanoBTS to
communicate with my laptop running osmo-nitb I seem to be running into a
problem.
I am running openbsc-0.9.13 and using libosmocore-0.1.30
When I start osmo-nitb I see this error:
./osmo-nitb -T -c ./openbsc.cfg
DB: Database initialized.
DB: Database prepared.
Sat Sep 10 17:39:42 2011 <0007> sms_queue.c:223 Attempting to send
20 SMS
Sat Sep 10 17:39:45 2011 <000d> input/ipaccess.c:650 accept()ed new
OML link from 2.2.2.1
Sat Sep 10 17:39:45 2011 <0004> e1_input.c:238 rsl_sendmsg:
msg->trx->rsl_link == NULL: 81 8a c4 0b
Sat Sep 10 17:39:45 2011 <0004> e1_input.c:238 rsl_sendmsg:
msg->trx->rsl_link == NULL: 81 81 c1 10 02 00 00 00 c0 a8 ea 01 00 00 00
00 00 00 00 00
Sat Sep 10 17:39:45 2011 <0004> e1_input.c:238 rsl_sendmsg:
msg->trx->rsl_link == NULL: 81 81 c1 10 02 00 d4 07 c0 a8 ea 01 38 a4 45
00 04 59 40 00
Sat Sep 10 17:39:45 2011 <0005> bsc_init.c:50 Failed to set BTS
attributes. That is fatal. Was the bts type and frequency properly
specified?
I am using one of the stock nitb configuration files with no modifications.
openbsc.git/openbsc/doc/examples/osmo-nitb/nanobts/openbsc.cfg
My setup is a little odd. I did not do the original configuration for
the nanoBTS. I was hoping to just get stuff working with the current
configuration before I changed anything.
The nanoBTS comes up with an IP of 2.2.2.1 and expects a gateway of
2.2.2.2. So I simply configured the ip eth0 on my laptop to 2.2.2.2.
Then annoyingly the nanoBTS starts looking for 3.3.3.3. Now I start
getting a little hacky to try and move stuff along:
ip addr add 3.3.3.3/24 dev eth0
ip route add 3.3.3.3/32 via 2.2.2.2
I am able to use ipaccess-find:
./ipaccess-find eth0
# finally shows
# MAC Address='00:02:95:00:51:83' IP Address='2.2.2.1' Unit
ID='1801/0/0'
# Location 1='' Location 2='BTS_NBT131G' Equipment
Version='165b029_58'
# Software Version='168a302_v142b13d0' Unit
Name='nbts-00-02-95-00-51-83'
# Serial Number='00106317'
I am also able to use ipaccess-config:
./ipaccess-config -u 1801/0/0 -o 2.2.2.2 -r 2.2.2.1
# Trying to connect to ip.access BTS ...
# <0005> abis_nm.c:537 OC=SITE-MANAGER(00) INST=(ff,ff,ff) STATE CHG:
# OP_STATE=Disabled AVAIL=Not installed(07)
# <0005> abis_nm.c:537 OC=BTS(01) INST=(00,ff,ff) STATE CHG:
OP_STATE=Disabled
# AVAIL=Not installed(07) ADM=Locked
# <0005> abis_nm.c:537 OC=BASEBAND-TRANSCEIVER(04) INST=(00,00,ff)
STATE CHG:
# OP_STATE=Disabled AVAIL=Not installed(07) ADM=Locked
# OML link established using TRX 0
# setting Unit ID to '1801/0/0'
# setting primary OML link IP to '2.2.2.2'
# <0005> abis_nm.c:537 OC=CHANNEL(03) INST=(00,00,00) STATE CHG:
# OP_STATE=Disabled AVAIL=Not installed(07) ADM=Locked
# <0005> abis_nm.c:537 OC=CHANNEL(03) INST=(00,00,01) STATE CHG:
# OP_STATE=Disabled AVAIL=Not installed(07) ADM=Locked
# <0005> abis_nm.c:537 OC=CHANNEL(03) INST=(00,00,02) STATE CHG:
# OP_STATE=Disabled AVAIL=Not installed(07) ADM=Locked
# <0005> abis_nm.c:537 OC=CHANNEL(03) INST=(00,00,03) STATE CHG:
# OP_STATE=Disabled AVAIL=Not installed(07) ADM=Locked
# <0005> abis_nm.c:537 OC=CHANNEL(03) INST=(00,00,04) STATE CHG:
# OP_STATE=Disabled AVAIL=Not installed(07) ADM=Locked
# <0005> abis_nm.c:537 OC=CHANNEL(03) INST=(00,00,05) STATE CHG:
# OP_STATE=Disabled AVAIL=Not installed(07) ADM=Locked
# <0005> abis_nm.c:537 OC=CHANNEL(03) INST=(00,00,06) STATE CHG:
# OP_STATE=Disabled AVAIL=Not installed(07) ADM=Locked
# <0005> abis_nm.c:537 OC=CHANNEL(03) INST=(00,00,07) STATE CHG:
# OP_STATE=Disabled AVAIL=Not installed(07) ADM=Locked
# <0005> abis_nm.c:537 OC=RADIO-CARRIER(02) INST=(00,00,ff) STATE CHG:
# OP_STATE=Disabled AVAIL=Not installed(07) ADM=Locked
# <0005> abis_nm.c:537 OC=GPRS-NSE(f0) INST=(00,ff,ff) STATE CHG:
# OP_STATE=Disabled AVAIL=Not installed(07) ADM=Locked
# <0005> abis_nm.c:537 OC=GPRS-CELL(f1) INST=(00,00,ff) STATE CHG:
# OP_STATE=Disabled AVAIL=Not installed(07) ADM=Locked
# <0005> abis_nm.c:537 OC=GPRS-NSVC(f2) INST=(00,00,ff) STATE CHG:
# OP_STATE=Disabled AVAIL=Not installed(07) ADM=Locked
# <0005> abis_nm.c:537 OC=GPRS-NSVC(f2) INST=(00,01,ff) STATE CHG:
# OP_STATE=Disabled AVAIL=Not installed(07) ADM=Locked
# <0005> abis_nm.c:537 OC=BASEBAND-TRANSCEIVER(04) INST=(00,00,ff)
# IPACCESS(0xf0): SET NVATTR ACK
# Set the NV Attributes.
# The BTS has acked the restart. Exiting.
At this point I try to start osmo-nitb and receive the error I mentioned
earlier:
./osmo-nitb -T -c ./openbsc.cfg
DB: Database initialized.
DB: Database prepared.
Sat Sep 10 17:39:42 2011 <0007> sms_queue.c:223 Attempting to send
20 SMS
Sat Sep 10 17:39:45 2011 <000d> input/ipaccess.c:650 accept()ed new
OML link from 2.2.2.1
Sat Sep 10 17:39:45 2011 <0004> e1_input.c:238 rsl_sendmsg:
msg->trx->rsl_link == NULL: 81 8a c4 0b
Sat Sep 10 17:39:45 2011 <0004> e1_input.c:238 rsl_sendmsg:
msg->trx->rsl_link == NULL: 81 81 c1 10 02 00 00 00 c0 a8 ea 01 00 00 00
00 00 00 00 00
Sat Sep 10 17:39:45 2011 <0004> e1_input.c:238 rsl_sendmsg:
msg->trx->rsl_link == NULL: 81 81 c1 10 02 00 d4 07 c0 a8 ea 01 38 a4 45
00 04 59 40 00
Sat Sep 10 17:39:45 2011 <0005> bsc_init.c:50 Failed to set BTS
attributes. That is fatal. Was the bts type and frequency properly
specified?
I think the bts type is set correct in the configuration file:
type nanobts
I am not sure what setting actually sets the frequency.
I am happy to provide more information and any help is appreciated.
Thanks in advance,
-Steve