[dtn-users] A problem with dtntunnel

["[e-mail]" <[e-mail]>]

Hello all!

I am using dtn-2.9.0 on a RHEL 6 based Linux distro and I am having a
problem when using netcat (nc) with dtntunnel.
On the sender node I run "cat /etc/passwd | nc receiver_ip". On the
receiver node I run "nc -l 9999". With the help
of Iptables port 9999 gets redirected to the port 19999, which is listened
by dtntunnel.

The file /etc/passwd is successfully delivered to the receiver and is shown
on the screen. After this the receiving nc exists.
No problem here. However, nc on the sender node doesn't exit after it sends
the file. It continues to run forever. When I
run nc in the opposite direction, I get the same problem - the sending nc
doesn't exit.

My configuration on both nodes is symmetric:
iptables -t nat -A OUTPUT -d $REMOTE_HOST -p tcp --dport 9999 -j DNAT --to
$LOCAL_HOST:19999
dtntunnel -T $LOCAL_HOST:19999:$REMOTE_HOST:9999 $REMOTE_NODE/dtntunnel/nc
-d
dtntunnel -L --local-eid $LOCAL_NODE/dtntunnel/nc -d

dtnping works ok in both directions.

Please give me any advice.

With best regards,
Sergey Sireskin