May 2013 - Ibr-dtn - lists.ibr.cs.tu-bs.de

compile ibr-dtn on openwrt
by Razvan BEURAN 28 May '13

28 May '13

Hi, I am trying to compile IBR-DTN on OpenWRT. I found out from a message on your mailing list that you have several files related to this in your SVN/GIT repository, but the link provided doesn't work anymore. Here is the message: http://www.ibr.cs.tu-bs.de/pipermail/ibr-dtn/2013-January/000278.html And here is part of its contents: > The OpenWRT packages are build from the release archives. The Makefiles > and the additional stuff for OpenWRT are available in the GIT or SVN > repository: > http://www.ibr.cs.tu-bs.de/svn/ibr-dtn/trunk/recipes/openwrt/ Could you please let me know where I can currently find the necessary files? Any related advice to compiling IBR-DTN on OpenWRT would be great. Related to this, note that I use a development OpenWRT version (r31674). I tried to install the OpenWrt packages you provided directly from the PKG files, but I had a dependency error (libstdcpp) which I didn't know how to solve, so I guess compiling is the only solution... Best wishes, Razvan

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ibr-dtn dtn2 interoperability
by Dimitrios Giotas 27 May '13

27 May '13

Hello, I was wondering if there are any interoperable commands in dtn2 and ibr-dtn. I've managed dtnping and dtnsend/recv so far, but my main goal is to have files transfered. So I was thinking like dtninbox/outbox(ibr-dtn) and dtncp/d(dtn2). Any help would be greatly appreciated. Regards, Dimitris GIotas

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ibr-dtn and ubuntu
by Evan Hardyanto 27 May '13

27 May '13

hai .. I am very exciting with ibr-dtn, but I never could install ibrdtnd and ibrdtn-tools like the ones in " http://trac.ibr.cs.tu-bs.de/project-cm-2012-ibrdtn/wiki/download", I've tried on ubuntu 12:04 and 13:04, but still can not even though I've also tried to use the way like in " http://trac.ibr.cs.tu-bs.de/project-cm-2012-ibrdtn/wiki/source". maybe you can help me, because this is also for my college final exams .. thank you. Regards evan.

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Android example activity
by Guilherme Rolim 23 May '13

23 May '13

Hello, I checked the Android Development session at the IBR-DTN Wiki and it shows there is an example activity in the subversion repository. However, I can't access it, when I click in both hyperlinks an Trac Error occurs. Is there another way I can get this activity? Thanks in advance, Guilherme Rolim

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problem regarding Prophet ACK's
by Bruno Tavares 22 May '13

22 May '13

Hello DId anyone have some problems regarding deletion of bundles in the sender by prophet ACK before the destination has received the entire bundle? Best regards, Bruno Tavares

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Ibr and dtn2 discovery
by Dimitrios Giotas 18 May '13

18 May '13

Hello, I am facing a brainteaser with the discovery of an ibr and a dtn2 node. Although I get the setup connection from each node to the other, and I can ping the ibr node from my dtn2 node, I can't do it vice versa. I have tried both static and epidemic routing (with the necessary discover adjustments) on both nodes but with no success so far.Any ideas on what might be wrong? Also, suppose that I do get around this pinging issue, is it possible to use other commands that might be interoperable? eg dtninbox,dtnsend. Regards, Dimitris Giotas

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Discovery version on OpenWRT
by Dimitrios Giotas 11 May '13

11 May '13

Hello, I was wondering how can I change the discovery version on an OpenWRT router to 0, which is compatible with the dtn2 daemon. I found an older solution to the mailing list (dating 2011), but it says that the option in the config file will be implemented into future versions. Thank you, Dimitris Giotas

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ibr-dtn and dtn2 node discovery
by Dimitrios Giotas 08 May '13

08 May '13

Hello everyone, I am currently trying to make an ibrdtn node discover a dtn2 node. My main concern is the discovery options of dtn2.I found an older article in the mailing list and followed the instructions stated in the article : http://www.ibr.cs.tu-bs.de/pipermail/ibr-dtn/2011-November/000099.html however I don't understand which IP should I type in the addr parameter. Should it be 224.0.0.1,the same as the ibrdtn node or something else? Also do I have to further configure the convergence layers in the dtn2 conf file, or is the default option suffice? Both nodes use epidemic routing. Thank you, Dimitris

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fragmentation issue
by Bruno Tavares 06 May '13

06 May '13

Hello! I'm using ibrdtn from the repository from 2 weeks ago and I noticed one problem related to the fragmentation. I had 2 nodes, A and B. I was sending a file (~77MBytes) and I stopped the connectivity between the 2 nodes several times to test the fragmentation proccess. I noticed two things. When I interrupted the transmission for 3 times (4 fragments) the node B receives the total bundle (fragments are reassembled), but the last fragment has size=total_size - last_fragment_size. So, it means that is only taking into account the last received fragment and not all of them received before. When I Interrupted 4 times (5 fragments) the same thing happened but in this case the bundles are not reassembled. Did anyone noticed this? Best regards, Bruno Tavares

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