Socket Connection Probolem - SYN - RST

I have been working on a connection problem that has me totally baffled and
I would not mind some pointers on where to start to search.

I have a small White Box Linux server up and running with a small server app
that listens to port 3020. I can telnet to that port from my workstation and
connect.
I have a small embedded device (Rabbit) that is supposed to connect to the
server to transfer data. I cannot get a connection between the two systems.
I've taken the code from the rabbit and the server and sent it to another
developer to try. He can get a connection between the two devices.
From the sniffer I can see the Rabbit sending out SYN packets and then RST
packets, but the server never responds. I can ping the Rabbit from the
server with no problem...
There is nothing in the iptables and I'm at a loss as to where to check
next..

any ideas?

thanks in advance

dave


.

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