Hello!

The clocks of both nodes must be in sync in order process bundles
properly. You have two options:

1) Synchronize the clock manually or using NTP

2) Enable the built-in DT-NTP for automatic time-synchronization

On the first node this options have to be set in the ibrdtnd.conf:

time_reference = yes
time_discovery_announcements = yes

On the second (and all others) these options are required:

time_reference = no
time_synchronize = yes


Kind regards,
Johannes


Am 16.10.2014 um 11:25 schrieb Farouk Mezghani:
> Hello,
>
> I'm trying to do a "dtnping" between two dtn nodes (node1 and node2).
>
> from node 2  :  dtnping dtn://node1/echo
>
> I have noticed that they can see each other, however, when I try to make a ping from node
> 2 to node 1, I get this warning :/
>
> //WARNING: bundle rejected: bundle has expired
> //([415720186.377] dtn://node2.dtn/zsKZSPktexxyNvJ -> dtn://node1.dtn/echo <dtn://nodeC.dtn/echo>)
> //WARNING: bundle has been rejected: bundle is //expired
>
> /I cannot understand the reason. Someone have an idea how may I resolve it?
>
> Thanks!
>
> Best Regards,
>
> Farouk
>
>
>

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