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Sipos Csaba sipos.csaba at kvk.uni-obuda.huHi Harald, Thanks for clearing that up. Do you think that these vendor agnostic implementations can cahnge with the small cell forum API? http://scf.io/en/documents/082_-_LTE_eNB_L1_API_definition.php Do we know any femtos on the market that actually is compatible with this API? And if we have one, can that help us? Personally I wanted to order an AT&T small cell (I think its Cisco based) because its cheap and available, but it is quite an old model. I don't know if anybody knows sometinhg about this particular model? If there is no opposition I might order one just to play with it. Or maybe you have some specific models in mind you always wanted to try but never had the time? If you have any recommendations I would be happy to look into them. Regards, Csaba ----- Eredeti üzenet ----- Feladó: "Harald Welte" <laforge at gnumonks.org> Címzett: "Sipos Csaba" <sipos.csaba at kvk.uni-obuda.hu> Másolatot kap: "OpenBSC Mailing List" <openbsc at lists.osmocom.org> Elküldött üzenetek: Szombat, 2015. Október 17. 15:15:49 Tárgy: Re: Femto - IuH Hi Sipos, On Sat, Oct 17, 2015 at 12:48:58PM +0200, Sipos Csaba wrote: > Now that the implementation of the IuH interface is on its way, can > you please recommend any femtos which you think can probably be used > with this implementation? I have no idea. The point is basically to find (surplus, second hand) femtocells on the market, that a) speak an Iuh interface (older models have URSL, UMA/GAN or other proprietary protocols) b) can be rooted somehow, so we can either replace the ipsec certificates, or disable ipsec towards the SEGW c) are available in quantities that make them interesting/useful to the community At sysmocom we tried very hard to find a femtocell manufaturer who would be willing to sell certain volumes to us, where we could then sell them to the open market (including the community). However, this has not been successful for several reasons, including: * the quantities of femtocells are typically large, much larger than we would likely be able to sell * the vendors typically work with one supplier of the respective SEGW/HNBGW and associated management solution, and they don't like (or maybe even are contractually forbidden) from selling to anyone who does not at the same time operate that core network infrastructure. As we are building our own infrastructure, they don't like that. > I think in a previous conversation in this subject someone mentioned > that probably Alcatel based units has the highest chance because of > certain configuration and/or implementation options. That was years ago. While those units are still quite hackable, they predate Iuh by some years and have some kind of proprietary framing around the RANAP (Iu) messages. So if you or anyone else on this list has some suggestions, it would of course be more than welcome. Some people are looking into now obsolete Huawei models (based on vxworks), where there was some presentation earlier this year: http://www.slideshare.net/arbitrarycode/adventures-in-femtoland-350-yuan-for-invaluable-fun It still needs to be seen what models using what firmware release are vulnerable as described in the slides, if the results can be reproduced, etc. Regards, Harald -- - Harald Welte <laforge at gnumonks.org> http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)