Glex, I've been following your work and I am trying to do something similar, but instead of using wifi/rmnet0 I am looking to use USB/Ethernet and rmnet0 simultaneously. My work isn't using stock AOSP I've been pretty much working with CM 10.1 and so far my USB/Ethernet connection is successful and rmnet0 works as it always did, but trying to combine the two (basically making the phone a router) the USB/Ethernet interface takes priority and shuts down the rmnet0. Do you have any suggestions? I'm digging through the CM 10.1 kernel to maybe find a work around/patch, but I'm up for any alternatives.
~Ty On Sunday, September 16, 2012 7:17:46 PM UTC-4, glex wrote: > > The problem has been solved. > > I updated my routing table for appropriate source routing and two default > gateways (for different source IP addresses) > > Thanks, > GLEX > > On Wednesday, 29 August 2012 13:09:29 UTC-4, glex wrote: >> >> I am aware that concurrent usage of WiFi and 3G/4G is not supported on >> Android devices right now. I am working on a research project which tries >> to analyse the pros and cons for the same. >> >> I used the approach used by Android WiFi tether to reload the WiFi driver >> and configure the routing table and appropriate interfaces. I summarized my >> work in the >> followinglink<https://sites.google.com/site/lotuseaterarpit/news/3g4gwififorandroidconcurrently>. >> >> I tested my setup using the *"ping -I eth0/rmnet0 <web server>". * Till >> this phase everything is running smoothly. >> >> As a next step I tried to establish a socket connection using the two >> interfaces. Everything works fine as I use 3G interface, but when I try >> using the WiFi (eth0), socket connection is not successful. Though I can >> see that bind operation is successful. >> >> The code I used for this socket establishment is: >> >> *NetworkInterface nif = NetworkInterface.getByName("eth0");* >> * Log.d(TAG,"Interface detected S");* >> * Enumeration<InetAddress> nifAddresses = nif.getInetAddresses();* >> * Log.d(TAG,"Interface IP Address Retrieved S: ");* >> * Socket socket = new Socket();* >> * try{* >> * socket.bind(new InetSocketAddress(nifAddresses.nextElement(),1027));* >> * Log.d(TAG,"Socket Bind S");* >> * socket.connect(new >> InetSocketAddress(InetAddress.getByName("152.14.93.160"),80));* >> * Log.d(TAG,"Socket Creation Success");* >> * socket.close();* >> * Log.d(TAG,"Socket Closed S");* >> * } catch (Exception e1){* >> * socket.close();* >> * Log.d(TAG,"Socket Bind Error");* >> * e1.printStackTrace();* >> * }* >> * * >> * * >> * } catch (Exception e1) {* >> * * >> * // TODO Auto-generated catch block* >> * Log.d(TAG,"Socket Creation Error");* >> * e1.printStackTrace();* >> * }* >> * >> * >> * >> * >> Also from the logcat the exception I see for the same is: >> >> *W/System.err(10996): java.net.SocketTimeoutException: Connection timed >> out* >> *W/System.err(10996): at >> org.apache.harmony.luni.platform.OSNetworkSystem.connect(Native Method)* >> *W/System.err(10996): at >> dalvik.system.BlockGuard$WrappedNetworkSystem.connect(BlockGuard.java:357) >> * >> *W/System.err(10996): at >> org.apache.harmony.luni.net.PlainSocketImpl.connect(PlainSocketImpl.java:207) >> * >> *W/System.err(10996): at >> org.apache.harmony.luni.net.PlainSocketImpl.connect(PlainSocketImpl.java:440) >> * >> *W/System.err(10996): at java.net.Socket.connect(Socket.java:1013)* >> *W/System.err(10996): at java.net.Socket.connect(Socket.java:956)* >> *W/System.err(10996): at >> com.example.pdwn.TService.onCreate(TService.java:98)* >> *W/System.err(10996): at >> android.app.ActivityThread.handleCreateService(ActivityThread.java:2223)* >> *W/System.err(10996): at >> android.app.ActivityThread.access$2500(ActivityThread.java:132)* >> *W/System.err(10996): at >> android.app.ActivityThread$H.handleMessage(ActivityThread.java:1102)* >> *W/System.err(10996): at >> android.os.Handler.dispatchMessage(Handler.java:99)* >> *W/System.err(10996): at android.os.Looper.loop(Looper.java:150)* >> *W/System.err(10996): at >> android.app.ActivityThread.main(ActivityThread.java:4293)* >> *W/System.err(10996): at java.lang.reflect.Method.invokeNative(Native >> Method)* >> *W/System.err(10996): at >> java.lang.reflect.Method.invoke(Method.java:507)* >> *W/System.err(10996): at >> com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:849) >> * >> *W/System.err(10996): at >> com.android.internal.os.ZygoteInit.main(ZygoteInit.java:607)* >> *W/System.err(10996): at dalvik.system.NativeStart.main(Native Method)* >> >> I am not sure why, the connect function is timing out. Specially given >> that ping operation is successful. Any help will be greatly appreciated. >> >> Thanks, >> Arpit. >> > -- -- 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.
