[Ndn-interest] Request for help with running ndnping and ndnpingserver on our testbed

[Navaneet Y V N .]

Dear Members of the community,

My team is working on setting up a testbed that runs on NDN. The testbed
consists of 5 Raspberry Pi-4 devices all connected to an L2 switch(D-Link
Switch DGS-1250-28X) via ethernet and this switch is connected to a private
network. The R-Pi devices each run Ubuntu Server 22.04.03 LTS and all of
them have NFD, ndn-cxx and ndn-tools installed along with their
dependencies and the steps mentioned in the respective github repositories
of NDN. I was able to successfully run the producer-consumer example on all
our R-Pi devices.

When I decided to test out the connectivity of two R-Pi devices in this
setup over NDN, I tried running ndnping server on one device and ndnping on
the other which is not working. I followed the steps mentioned here
<https://github.com/named-data/ndn-tools/tree/master/tools/ping> on the
ndn-tools documentation on github. I have made sure to add the respective
interfaces and routes (using nfdc face create and nfdc route add, while
using udp4) and also made sure that NFD is running properly. We do not
understand what is the issue here and we could really use some help.

I have attached the screenshots of the terminal from testing the ndnping
and ndnpingserver commands. Please write to us if you need any more
clarifications on our issue.

Thanks,
Navaneet
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