Just to throw in my two cents, I went round and round with one of our business partners on a similar problem with a result interface. I loaded a network sniffer, and what I saw was that with the Cloveleaf box in client mode, the port number on the TCP stack that it was using to acknowledge the ACK from the foreign host kept incrementing up, which is normal. The issue was that their firewall was allowing these incremeted port packets in, but not back out. This is a security feature some firewalls have built in to blocking malicious port scanning. The business partner had to load a new firmware version, and create a firewall entry such that for our address, it would pass any port number coming back out of their network.
