I mean your system's search path. echo $PATH . Probably the path where you installed dtn2 is in there (first). If you don't have experience with Linux based systems, uninstalling DTN2 might be the easiest solution.

Dimitrios Giotas <dimigiotas@gmail.com> wrote:

Thanks for your reply.

Could you also tell me how to check my path.The only path I know that is about ibr-dtn is the /etc/ibrdtn which contains the conf file.Other than that I can't find anything relevant.

Thank you,
Dimitris
On Mon, Dec 17, 2012 at 8:47 PM, Sebastian Schildt <schildt@ibr.cs.tu-bs.de> wrote:
Probably you are trying to run the DTN2 version of dtnping with IBR-DTN. This can not work. Make sure you start IBR-DTNs dtnping binary. (Check your PATH)
Dimitrios Giotas <dimigiotas@gmail.com> wrote:
Hello,

I have the dtn daemon installed on my pc.First I want to send a ping from the daemon to itself.
I have used both the default configuration file and a modified one I'm going to need for a future task.

So I have the deamon running on one terminal and on another terminal I write
dtnping dtn://dimitrishp.dtn/echo in order to send the ping.

Although the daemon seems to be running fine with both files, I always get the same error :
fatal error opening dtn handle: error in ipc communication
Any ideas how to get it fixed?

Thank you,
Dimitris

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