Dear Harald,
thank you for explanation, I really appreciate it.

So, osmo-hlr now need authentication for connect to the network? so we
cannot attach IMSI without the ki?

if Im not wrong I need to set disable it on the configuration?
 location updating reject cause 13
 encryption a5 1
 authentication optional

on this authentication line need to change? I try do change to
authentication disable, but not work. I believe I have wrong understanding

Im using for 2g network. as far I know only for 3g network you need ki

Hope some feedback. Thank you.


On Fri, Feb 2, 2018 at 7:13 AM, Harald Welte <> wrote:

> Hi!
> On Thu, Feb 01, 2018 at 07:14:41PM +0000, Sandi Suhendro wrote:
> > 20180201190135844 DAUC <0003> hlr.c:79 510106127044410: IMSI known, but
> has
> > no auth data; Returning slightly inaccurate cause 'IMSI Unknown' via GSUP
> the error is quite clear: You have only an IMSI in your HLR, but no
> authentication
> tokens (key material) for cryptographic authentication.
> If at the same time you have configured your network to perform
> authentication (i.e.
> not explicitly disabled it), then this will of course result in an error.
> Either you enter key data in the HLR for your SIM cards, or you disable
> authentication.
> > Does the new osmo-bsc on master cannot use? or maybe I need to
> investigate
> > more?
> The BSC has nothing to do with it.  Your error is in OsmoMSC or OsmoHLR
> configuration.
> --
> - Harald Welte <>
> ============================================================
> ================
> "Privacy in residential applications is a desirable marketing option."
>                                                   (ETSI EN 300 175-7 Ch.
> A6)

Best Regards,

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