January 2015 - Ibr-dtn - lists.ibr.cs.tu-bs.de

WARNING BundleFilter: bundle rejected due to invalid authentication
by Anthony Brown 31 Jan '15

31 Jan '15

Hi All, I'm having a problem getting two nodes to talk to each other. They are both raspberry PI's and I built dtnd from source using the git tagged release/1.0.0. The build and install works fine and and the network is configured and both nodes can ping over IPv4 and v6. I can start dtnd, both nodes can see each other and discover each other. However, when I try a dtnping the bundles are rejected. Output from dtnd -v is included below: Wed Jan 28 16:37:53 2015 INFO NativeDaemon: IBR-DTN daemon 1.0.0 (build e63bc34) Wed Jan 28 16:37:53 2015 INFO Configuration: Using default settings. Call with --help for options. Wed Jan 28 16:37:53 2015 INFO BundleCore: Local node name: dtn://selsus1 Wed Jan 28 16:37:53 2015 INFO BundleCore: Forwarding of bundles enabled. Wed Jan 28 16:37:53 2015 INFO NativeDaemon: using bundle storage in memory-only mode Wed Jan 28 16:37:53 2015 INFO NativeDaemon: API initialized using tcp socket: loopback:4550 Wed Jan 28 16:37:53 2015 INFO NativeDaemon: TCP ConvergenceLayer added on wlan0:4556 Wed Jan 28 16:37:53 2015 INFO DiscoveryAgent: listen to [ff02::142]:4551 Wed Jan 28 16:37:53 2015 INFO DiscoveryAgent: listen to [224.0.0.142]:4551 Wed Jan 28 16:37:53 2015 INFO DiscoveryAgent: add interface wlan0 Wed Jan 28 16:37:53 2015 INFO NativeDaemon: Using default routing extensions Wed Jan 28 16:37:54 2015 NOTICE NodeEvent: Node dtn://selsus0 available Wed Jan 28 16:38:03 2015 NOTICE ConnectionEvent: connection up dtn://selsus0 Wed Jan 28 16:38:03 2015 WARNING BundleFilter: bundle rejected due to invalid authentication ([475778323.1] dtn://selsus0/RkhdHUcHebZVAxqt) I've tried setting security_level = 0 in the conf file but this had no effect. Any help pointing me in the right direction would be much appreciated. Thanks for your time, Tosh This message and any attachment are intended solely for the addressee and may contain confidential information. If you have received this message in error, please send it back to me, and immediately delete it. Please do not use, copy or disclose the information contained in this message or in any attachment. Any views or opinions expressed by the author of this email do not necessarily reflect the views of the University of Nottingham. This message has been checked for viruses but the contents of an attachment may still contain software viruses which could damage your computer system, you are advised to perform your own checks. Email communications with the University of Nottingham may be monitored as permitted by UK legislation.

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Unerwarteter 400 Status Code
by felix 26 Jan '15

26 Jan '15

Sehr geehrtes IBR-DTN-Team, im Rahmen meiner Bachelor-Arbeit setze ich auf ihrer DTN-Implementierung auf, um ein hybrides Internet-DTN-Chatprokoll zu entwerfen. Jedoch bekomme ich einen 400, also API_STATUS_BAD_REQUEST, Status Code, wenn ich 'bundle load queue', also einen korrekten Befehl, sende, ohne dass zuvor ein Bundle eingegangen ist. Hier ein komplettes Beispiel mit telnet und dtnsend: --------------------------------------------------------- test@laptop:~$ telnet localhost 4550 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. IBR-DTN 1.0.0 (build e63bc34) API 1.0 protocol extended 200 SWITCHED TO EXTENDED registration list 200 REGISTRATION LIST dtn://laptop/wpcvlWLhmpNNulvP bundle load queue 400 ERROR 602 NOTIFY BUNDLE 475326945 1 dtn://laptop/RGYcDTOSpAxkkFjP bundle load queue 200 BUNDLE LOADED 475326945 1 dtn://laptop/RGYcDTOSpAxkkFjP --------------------------------------------------------- test@laptop:~$ echo test | dtnsend dtn://laptop/wpcvlWLhmpNNulvP Transfer stdin to dtn://laptop/wpcvlWLhmpNNulvP --------------------------------------------------------- Mit freundlichen Grüßen Felix Bandosz

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I Need some help with IBR-DTN
by Igor Ribeiro 20 Jan '15

20 Jan '15

Hi folks, I am executing some experiences with IBR-DTN in a mesh network. My setup is as follows: PC 1 ———————— Router 1 ——————————— Router 2 ——————————— PC2 Routers 1 and 2 have two wireless cards, one of 2.5 Ghz (wlan0) and one of 5 Ghz (wlan1). The routers are connected together by wlan1, which operates in ad-hoc mode. PC1 and PC2 are connected to the routers by wlan0, which operates in AP mode. I installed IBR-DTN in all nodes. For PC1 and PC2, ibrdtnd runs on interface wlan0. For Router 1 and Router 2, ibrdtnd runs on both interfaces (wlan1 and wlan0). All nodes were configured with flooding routing policy. In the aforementioned setup, I tried to send a file from PC1 to PC2 using dtnsend and dtnrecv, but the file never reaches PC2. I can ping PC2 from PC1 correctly, When I try the same experiment but between two nodes in the same network it succeeds. So, I`m wondering if the presence of two wireless cards in the routers is causing the problem. Could you help me? Best regards, Igor.

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dtnstream problem
by abu fahruddin 15 Jan '15

15 Jan '15

Hi All, I want to stream and convert video file by using VLC and IBR-DTN as below sender (PC 1) IP : 192.168.10.20 file streaming : cheese.mp4 (location /home/habibi/Document/chesse.mp4) receiver (PC2) IP : 192.168.10.10 I try with 2 method >>Method 1 PC1 #dtnstream -s streamReceiver | vlc vlc/media/stream/ PC2#vlc vlc/media/convert/save >>Method 2 PC1 #dtnstream -s streamReceiver | vlc vlc/media/stream/ PC2#wget http://192.168.10.20:8080 in method 1 we can stream but the only sound can be saved without video. in method 2 cannot stream and file cannot save. any idea to solve my problem please..... regards

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IBR-DTN release 1.0
by Johannes Morgenroth 10 Jan '15

10 Jan '15

We are proud to announce release 1.0.0! This is the most stable and feature rich version of IBR-DTN ever. Security features are now automatically enabled if the daemon is installed using our packaging system. The necessary private key is generated automatically and a key-exchange approach is embedded in the software. On Android devices it is possible to exchange and verify the keys using a QR codes, NFC, and other comparison methods. Moreover, the software can store its most important state persistently and thus better handle situations where the device has been turned off or the daemon is disabled intermittently. For a detailed list of changes and features visit the changelog. http://www.ibr.cs.tu-bs.de/trac/ibr-dtn/wiki/changelog Kind regards, Johannes Morgenroth

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Re: [ibr-dtn] ibrdtn and java
by Julian Timpner 02 Jan '15

02 Jan '15

Hi! > I'm working on the java part of the ibrdtn > <https://github.com/ibrdtn/ibrdtn/tree/master/java>. Nice clean code which > works fine. Thanks, glad to hear =) > Nonetheless I have some difficulties to use received bundles. Indeed I > cannot find a way to know to which EID a bundle had been sent neither how > to use its payload outside of the thread > <https://github.com/ibrdtn/ibrdtn/blob/master/java/example/src/ibrdtn/exampl…> > printing in the LOG the bundle. Well, if you have a look at https://github.com/ibrdtn/ibrdtn/blob/master/java/example/src/ibrdtn/exampl… you'll find an example of how to process the bundle outside of the main receiver thread. It stores the received data in a Envelope Object (which is just a simple example, you can use your own), which contains both the payload data as well as the BundleID, which in turn contains the SingletonEndpoint source address. Hope this helps! Happy new year, Julian

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