Sample configs for reproducing osmo-nitb behaviour with the split stack

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Oliver Smith osmith at sysmocom.de
Mon Jul 15 08:08:10 UTC 2019


"check-imei-rqd early", not "check-imei early"

On 7/15/19 10:05 AM, Oliver Smith wrote:
> Hey Rafael,
> 
> On 7/13/19 5:55 PM, Rafael Diniz wrote:
>> Hi Harald,
>>
>>> On Fri, Jul 12, 2019 at 10:26:04AM -0300, Rafael Diniz wrote:
>>>> Today I'm working on updating my NuRAN unit with the new osmo stack 
>>>
>>> Can you clarify which particular model/unit that is?
>>>
>>> I would assume that the 'nightly' OE packages sysmocom provides should have
>>> all related features.
>>
>> It's a Nuran LC 1.5. I'm using debian 9 armhf packages and compiling by
>> hand the BTS and PCU against LC 1.5 headers.
>>
>>>> I'm writing just in case someone already put online a set of config
>>>> files with the parameters needed by such behavior set?
>>>> ; )
>>>
>>> I would be careful with full configuration files, as they contain all kinds
>>> of settings which may or may not do what you want.  The settings for
>>> subcsriber-create-on-demand are only 2-3, AFAIR.
>>>
>>>> ps: I have the new splip stack working fine here, I just need to modify
>>>> my setup with new features to support subscriber_create_on_demand.
>>>
>>> Then please simply use the config files you have and not start with
>>> something else just because you need to modify one or very few lines...
>>>
>>> See https://osmocom.org/issues/2542 where Oliver actually also points to
>>> a short new chapter in the manual at https://ftp.osmocom.org/docs/latest/osmohlr-usermanual.pdf
>>>
>>> If yo have more specific questions, feel free to raise them here :)
>>
>> Fine, I'll just adapt my config - Thanks!!
> 
> As Harald pointed out, the documentation could use some more examples.
> I'll update the docs accordingly, but to make your life easier, here are
> the configuration options relevant for your use case (with sending the
> IMEI to the HLR).
> 
> osmo-msc.cfg:
> msc
>  check-imei early
> 
> osmo-hlr.cfg:
> hlr
>  subscriber-create-on-demand 5 none
>  store-imei
> 
> 
> This will create 5 digit MSISDNs for the subscribers, and disable CS NAM
> and PS NAM by default (circuit switched and packet switched network
> access modes). Subscribers can't make phone calls or use cellular data,
> so their phones will not connect to the network, but the entry in the
> HLR will be created.
> 
> After a new subscriber was created, it will look like this in the VTY
> (I've replaced the real IMEI and IMSI with zeros):
> 
> OsmoHLR> enable
> OsmoHLR# subscriber imei 00000000000000 show
>     ID: 1
>     IMSI: 000000000000000
>     MSISDN: 58192           <- randomly generated
>     IMEI: 000000000000000
>     CS disabled
>     PS disabled
> 
> The idea is now to enable CS and PS for the IMEIs that you know. Right
> now, the documentation says:
> 
>> In order to do that, one can set the default NAM to none and manually
>> approve new subscribers by enabling their nam_cs and nam_ps parameters
>> (e.g. over the VTY).
> 
> But as I was about to create an example of how these commands look like,
> I realized that VTY commands for changing nam_cs and nam_ps don't
> actually exist yet :\ So for now, these flags have to be changed
> manually in the sqlite database... change nam_cs and nam_ps to 1 in the
> subscriber table. Maybe this is still useful for testing. I will add the
> missing VTY commands shortly.
> 
>>
>> Cheers,
>> Rafael Diniz
>>
> 
> Cheers,
> Oliver
> 

-- 
- Oliver Smith <osmith at sysmocom.de>            https://www.sysmocom.de/
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