nanoBTS - Different version ?

This is merely a historical archive of years 2008-2021, before the migration to mailman3.

A maintained and still updated list archive can be found at https://lists.osmocom.org/hyperkitty/list/OpenBSC@lists.osmocom.org/.

Sylvain Munaut 246tnt at gmail.com
Wed Aug 26 15:43:14 UTC 2009


Hi,

I just got hold of a ip.access nanoBTS model 139U, but so far my
attemps at making it work with OpenBSC have been unsuccessful :(

It's a 'used' one so there are config already done most likely and I
don't know which.

What differs from http://bs11-abis.gnumonks.org/trac/wiki/nanoBTS :

 * It doesn't request an IP by DHCP
   It seems to have IP/Netmask and GW hardcoded.

 * When plugging it, it tries to do an ARP request for what I guess
his the GW address, and when it get a response, it tries to connect to
TCP port 3022 (yes, it's 3022 and not 3002) of yet another IP in
another subnet (which I guess is the configured Primarly OML IP)

 * ipaccess-find does find it :

----
ipaccess-find (C) 2009 by Harald Welte
This is FREE SOFTWARE with ABSOLUTELY NO WARRANTY

Trying to find ip.access BTS by broadcast UDP...
MAC Address='00:02:95:00:31:22'  IP Address='10.105.254.142'  Unit
ID='65143/0/0'  Location 1='NanoBTS FXMarketspace'  Location
2='BTS_NBT131G'  Equipment Version='139_029_41'  Software
Version='120a352_v267b22d0'  Unit Name='69419'  Serial
Number='00071582'
----

 * ipaccess-config fails, the nanoBTS refuses incoming connections on
port tcp 3006

 * Here's the result of a NMAP :

----
sh$ sudo nmap -sS 10.105.254.142 -p 1-65535

Starting Nmap 4.76 ( http://nmap.org ) at 2009-08-26 16:21 CEST
Interesting ports on 10.105.254.142:
Not shown: 65533 closed ports
PORT     STATE SERVICE
3026/tcp open  unknown
3034/tcp open  unknown
MAC Address: 00:02:95:00:31:22 (IP.Access Limited)
----

 * I then tried to run ipaccess-config to port 3026 but it fails (just
waits a while thensays short read / BTS disappeared)

 * I tried making openbsc listen on 3022 but with no real results :

---
sh$ bsc_hack
DB: Database initialized.
DB: Database prepared.
no matching signalling link for hh->proto=0x01
no matching signalling link for hh->proto=0x29
no matching signalling link for hh->proto=0x2b
no matching signalling link for hh->proto=0x1b
short read!
no matching signalling link for hh->proto=0x01
short read!
BTS disappeared, dead socket
short read!
no matching signalling link for hh->proto=0x01
no matching signalling link for hh->proto=0x29
no matching signalling link for hh->proto=0x2b
no matching signalling link for hh->proto=0xc9
short read!
no matching signalling link for hh->proto=0x01
short read!
BTS disappeared, dead socket
---
	
Any idea any one ?

    Sylvain




More information about the OpenBSC mailing list