Some more information... I tried using another SIM card, using a different APN, and it didn't work on any of the devices. What are the network requirements for this "special network feature"?
On 29 January 2013 13:58, Goncalo Oliveira <[email protected]> wrote: > logcat on galaxy note drops this > > 01-29 13:50:03.252: D/ConnectivityService(1865): startUsingNetworkFeature > reconnecting to 0: enableMMS > 01-29 13:51:03.332: D/ConnectivityService(1865): stopUsingNetworkFeature: > teardown net 0: enableMMS > > > On 29 January 2013 13:43, Goncalo Oliveira <[email protected]> wrote: > >> Well, the MMS APN trick does work.. on some devices. On others it doesn't. >> Tested with 2 devices with Android 2.3.3 and 3.2 and worked. >> On Samsung Galaxy Note with Android 4.0.4 it's not working. I wonder if >> it's the feature string that is different or if it has something to do with >> Android version... >> >> Any hints? >> >> >> On 28 January 2013 17:15, Goncalo Oliveira <[email protected]> wrote: >> >>> Thanks Robert, I really appreciate your help. I'll try as you suggest. >>> >>> >>> On 28 January 2013 16:59, Robert Greenwalt <[email protected]>wrote: >>> >>>> I don't think you're making your own builds, so you'll have to set the >>>> APN data on each device (though you probably already have to do this as >>>> it's not a public apn). In the apn data set the type of the apn to "mms" >>>> instead of "default" or blank. Remove any default/blank apn for your >>>> mcc/mnc pair. >>>> >>>> In your app, you will need to call >>>> CM.startUsingNetworkFeature(TYPE_MOBILE, "enableMMS"). This will turn off >>>> every 10 minutes (by default - may be different on different phones) so you >>>> need to call it repeatedly forever perhaps every 9.5 minutes. Then you >>>> need to call requestRouteToHost(TYPE_MOBILE_MMS, int addr) for every IP >>>> addr you're accessing. Then you should be able to access the servers >>>> normally. >>>> >>>> R >>>> >>>> >>>> On Mon, Jan 28, 2013 at 8:34 AM, Goncalo Oliveira >>>> <[email protected]>wrote: >>>> >>>>> Hi Robert, thanks for such a prompt answer. >>>>> >>>>> Firstly, it's 3 mb in 3 days, 1mb/day. The DNS resolves the addresses >>>>> correctly, but the connections will fail. Unfortunately I don't have >>>>> access >>>>> to DNS servers, so it's a bit harder to capture this traffic. I've >>>>> installed Onavo count to capture the traffic, and I can see the usage >>>>> growing up with Android OS. >>>>> >>>>> The APN idea seems to be a good workaround. Breaking the brower or >>>>> other apps isn't really a problem for us, as this is something very >>>>> specific. Can you tell me where can I find more information on how to do >>>>> this? >>>>> >>>>> Cheers >>>>> >>>>> >>>>> On 28 January 2013 16:14, Robert Greenwalt <[email protected]>wrote: >>>>> >>>>>> I am curious what the 3mb/day of data consists of if the servers >>>>>> can't be reached. 3mb of tcp connect attempts? DNS lookups? If it's >>>>>> DNS >>>>>> perhaps you could populate your local DNS server with bogus records so >>>>>> that >>>>>> the DNS requests die down to be replaced with perhaps fewer failing >>>>>> connect >>>>>> attempts? Can you capture this traffic? >>>>>> >>>>>> You could potentially use a different APN type. Instead of using a >>>>>> default type you could put it on type IMS or type MMS. This will >>>>>> involve a >>>>>> bit more work for you, but if you don't a a default connection the other >>>>>> apps shouldn't use any data. This would also mean things like the >>>>>> browser >>>>>> won't work. >>>>>> >>>>>> >>>>>> >>>>>> On Mon, Jan 28, 2013 at 3:58 AM, Goncalo Oliveira <[email protected] >>>>>> > wrote: >>>>>> >>>>>>> Sorry for reopening this, but I have a consequence behavior with >>>>>>> this and was hoping for some insights. >>>>>>> >>>>>>> As I said earlier, we are using a very specific APN that allows the >>>>>>> connection only to a restricted range of servers. I managed to use a >>>>>>> heartbeat every 5 minutes to workaround the GCM issue, and with the app >>>>>>> everything is working fine. However, I have another consequence. Because >>>>>>> the APN restricts access to anything outside "our safe little world", >>>>>>> the >>>>>>> system is consuming a whole load of data. Android OS consumed 3 mb in >>>>>>> three >>>>>>> days, Google Services 416 k. In the data settings I was able to restrict >>>>>>> Google Services (as well as software updates and others) from using data >>>>>>> but I can't do the same for Android OS. This is killing us completely >>>>>>> because we have a very restrictive data plans. >>>>>>> >>>>>>> Any ideas on how I can disable data transfer for everything except >>>>>>> my application? >>>>>>> >>>>>>> Thanks >>>>>>> >>>>>>> >>>>>>> On 21 December 2012 15:55, Goncalo Oliveira <[email protected]>wrote: >>>>>>> >>>>>>>> Robert, >>>>>>>> >>>>>>>> Thanks again for clarifying. Basically if I open up GCM I'm >>>>>>>> allowing user to work with gtalk, so I will want to avoid that. >>>>>>>> Looks like sending the heartbeat every 5 minutes is the only option >>>>>>>> I have left. >>>>>>>> >>>>>>>> Thanks for the help. Much appreciated. >>>>>>>> Cheers >>>>>>>> >>>>>>>> >>>>>>>> On 21 December 2012 15:44, Robert Greenwalt >>>>>>>> <[email protected]>wrote: >>>>>>>> >>>>>>>>> I believe most of the google apps rely on GCM (calendar, gmail, >>>>>>>>> contacts, talk, etc), also 3rd party apps that need pushed >>>>>>>>> notifications >>>>>>>>> are encouraged to use GCM. Unless you are making a custom build and >>>>>>>>> denying app installs you probably have apps that will be broken >>>>>>>>> without GCM. >>>>>>>>> >>>>>>>>> Of course, if you have very limited data plans on special purpose >>>>>>>>> phones, you may wish for all those apps to be broken - they can use >>>>>>>>> quite a >>>>>>>>> bit of data. >>>>>>>>> >>>>>>>>> I don't know what GCM's steady-state data rate is for a device. I >>>>>>>>> believe it does a carrier keep-alive ping every 20-30 minutes. It >>>>>>>>> also >>>>>>>>> checks for updates whenever the screen comes on. Other than that I >>>>>>>>> think >>>>>>>>> it is dependent on user or network-originating app traffic. >>>>>>>>> >>>>>>>>> R >>>>>>>>> >>>>>>>>> >>>>>>>>> On Fri, Dec 21, 2012 at 2:23 AM, Goncalo Oliveira < >>>>>>>>> [email protected]> wrote: >>>>>>>>> >>>>>>>>>> Robert, >>>>>>>>>> >>>>>>>>>> Thank you for the explanation. There's just one more thing that >>>>>>>>>> I'd like you to help me understand. If we choose to allow the GCM >>>>>>>>>> connection, what kind of traffic can we expect to have? Like I said >>>>>>>>>> previously, we have a very tight data plan, so if the GCM connection >>>>>>>>>> adds >>>>>>>>>> more than just a few bytes, that might be a bad idea to enable it. >>>>>>>>>> Also, by >>>>>>>>>> enabling GCM connection, what am I allowing the users to do? Can >>>>>>>>>> they use >>>>>>>>>> gtalk or something else? >>>>>>>>>> >>>>>>>>>> Cheers >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> On 21 December 2012 00:17, Robert Greenwalt < >>>>>>>>>> [email protected]> wrote: >>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> The GCM is part of the platform - 3rd party apps depend on it >>>>>>>>>>> and so there's no mechanism for deactivating it. >>>>>>>>>>> >>>>>>>>>>> If you can allow the GCM connection to succeed, you should avoid >>>>>>>>>>> the current problems, but if you're going for a secure platform you >>>>>>>>>>> may not >>>>>>>>>>> want the GCM connection to succeed. >>>>>>>>>>> >>>>>>>>>>> You could potentially hijack the dns resolution: have your dns >>>>>>>>>>> server report an address you control for mtalk.google.com, then >>>>>>>>>>> allow connections to your own server, but no real functionallity. >>>>>>>>>>> With >>>>>>>>>>> some reverse engineering you may be able to get to a quiet >>>>>>>>>>> connection that >>>>>>>>>>> doesn't trigger these data-stall triggers. >>>>>>>>>>> >>>>>>>>>>> The easiest solution is to adjust your keep-alive ping to < 6 >>>>>>>>>>> minutes. That will effect the battery, but less than allowing the >>>>>>>>>>> resets >>>>>>>>>>> to happen. >>>>>>>>>>> >>>>>>>>>>> I have created internal issues to examine this issue, but even >>>>>>>>>>> if we fixed it today internally you wouldn't see it for a long >>>>>>>>>>> while. The >>>>>>>>>>> first issue is to find what traffic is causing this connection >>>>>>>>>>> reset. The >>>>>>>>>>> second is to re-eval counting udp packets (I am assuming that's >>>>>>>>>>> causing >>>>>>>>>>> part of this problem). >>>>>>>>>>> >>>>>>>>>>> I'm sorry you have hit this issue. >>>>>>>>>>> >>>>>>>>>>> Robert >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> On Thu, Dec 20, 2012 at 4:30 AM, Goncalo Oliveira < >>>>>>>>>>> [email protected]> wrote: >>>>>>>>>>> >>>>>>>>>>>> Robert, >>>>>>>>>>>> >>>>>>>>>>>> Any updates on this? >>>>>>>>>>>> >>>>>>>>>>>> Cheers >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> On 18 December 2012 10:06, Goncalo Oliveira <[email protected] >>>>>>>>>>>> > wrote: >>>>>>>>>>>> >>>>>>>>>>>>> consider opening up the addre >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> -- >>>>>>>>>>>> Gonçalo Oliveira >>>>>>>>>>>> >>>>>>>>>>>> -- >>>>>>>>>>>> You received this message because you are subscribed to the >>>>>>>>>>>> Google >>>>>>>>>>>> Groups "Android Developers" group. >>>>>>>>>>>> To post to this group, send email to >>>>>>>>>>>> [email protected] >>>>>>>>>>>> To unsubscribe from this group, send email to >>>>>>>>>>>> [email protected] >>>>>>>>>>>> For more options, visit this group at >>>>>>>>>>>> http://groups.google.com/group/android-developers?hl=en >>>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> -- >>>>>>>>>>> You received this message because you are subscribed to the >>>>>>>>>>> Google >>>>>>>>>>> Groups "Android Developers" group. >>>>>>>>>>> To post to this group, send email to >>>>>>>>>>> [email protected] >>>>>>>>>>> To unsubscribe from this group, send email to >>>>>>>>>>> [email protected] >>>>>>>>>>> For more options, visit this group at >>>>>>>>>>> http://groups.google.com/group/android-developers?hl=en >>>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> -- >>>>>>>>>> Gonçalo Oliveira >>>>>>>>>> >>>>>>>>>> -- >>>>>>>>>> You received this message because you are subscribed to the Google >>>>>>>>>> Groups "Android Developers" group. >>>>>>>>>> To post to this group, send email to >>>>>>>>>> [email protected] >>>>>>>>>> To unsubscribe from this group, send email to >>>>>>>>>> [email protected] >>>>>>>>>> For more options, visit this group at >>>>>>>>>> http://groups.google.com/group/android-developers?hl=en >>>>>>>>>> >>>>>>>>> >>>>>>>>> -- >>>>>>>>> You received this message because you are subscribed to the Google >>>>>>>>> Groups "Android Developers" group. >>>>>>>>> To post to this group, send email to >>>>>>>>> [email protected] >>>>>>>>> To unsubscribe from this group, send email to >>>>>>>>> [email protected] >>>>>>>>> For more options, visit this group at >>>>>>>>> http://groups.google.com/group/android-developers?hl=en >>>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> -- >>>>>>>> Gonçalo Oliveira >>>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> -- >>>>>>> Gonçalo Oliveira >>>>>>> >>>>>>> -- >>>>>>> -- >>>>>>> You received this message because you are subscribed to the Google >>>>>>> Groups "Android Developers" group. >>>>>>> To post to this group, send email to >>>>>>> [email protected] >>>>>>> To unsubscribe from this group, send email to >>>>>>> [email protected] >>>>>>> For more options, visit this group at >>>>>>> http://groups.google.com/group/android-developers?hl=en >>>>>>> --- >>>>>>> You received this message because you are subscribed to the Google >>>>>>> Groups "Android Developers" group. >>>>>>> To unsubscribe from this group, send email to >>>>>>> [email protected]. >>>>>>> For more options, visit https://groups.google.com/groups/opt_out. >>>>>>> >>>>>>> >>>>>>> >>>>>> >>>>>> -- >>>>>> -- >>>>>> You received this message because you are subscribed to the Google >>>>>> Groups "Android Developers" group. >>>>>> To post to this group, send email to >>>>>> [email protected] >>>>>> To unsubscribe from this group, send email to >>>>>> [email protected] >>>>>> For more options, visit this group at >>>>>> http://groups.google.com/group/android-developers?hl=en >>>>>> --- >>>>>> You received this message because you are subscribed to the Google >>>>>> Groups "Android Developers" group. >>>>>> To unsubscribe from this group, send email to >>>>>> [email protected]. >>>>>> For more options, visit https://groups.google.com/groups/opt_out. >>>>>> >>>>>> >>>>>> >>>>> >>>>> >>>>> >>>>> -- >>>>> Gonçalo Oliveira >>>>> >>>>> -- >>>>> -- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "Android Developers" group. >>>>> To post to this group, send email to >>>>> [email protected] >>>>> To unsubscribe from this group, send email to >>>>> [email protected] >>>>> For more options, visit this group at >>>>> http://groups.google.com/group/android-developers?hl=en >>>>> --- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "Android Developers" group. >>>>> To unsubscribe from this group and stop receiving emails from it, send >>>>> an email to [email protected]. >>>>> >>>>> For more options, visit https://groups.google.com/groups/opt_out. >>>>> >>>>> >>>>> >>>> >>>> -- >>>> -- >>>> You received this message because you are subscribed to the Google >>>> Groups "Android Developers" group. >>>> To post to this group, send email to >>>> [email protected] >>>> To unsubscribe from this group, send email to >>>> [email protected] >>>> For more options, visit this group at >>>> http://groups.google.com/group/android-developers?hl=en >>>> --- >>>> You received this message because you are subscribed to the Google >>>> Groups "Android Developers" group. >>>> To unsubscribe from this group and stop receiving emails from it, send >>>> an email to [email protected]. >>>> >>>> For more options, visit https://groups.google.com/groups/opt_out. >>>> >>>> >>>> >>> >>> >>> >>> -- >>> Gonçalo Oliveira >>> >> >> >> >> -- >> Gonçalo Oliveira >> > > > > -- > Gonçalo Oliveira > -- Gonçalo Oliveira -- -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en --- You received this message because you are subscribed to the Google Groups "Android Developers" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
