i tried the previous scenario with different hostnames .... this results in :
...WARNUNG: "IOP00410201: (COMM_FAILURE) Connection failure: socketType: IIOP_CLEAR_TEXT; hostname: differentHostName; port: 3700"
[Message sent by forum member 'thomas_x' (thomas_x)]
http://forums.java.net/jive/thread.jspa?messageID=281304