I don't have a machine with 0.8.6 loaded up right now, but I believe that ibconf just modifies a gpibrc or gpib.rc file, so you might experiment with copying that to another system (backup the old file first) and see if the device config transfers. As I recall, ibconf tells you the file it is modifying on its initial text splash screen near the bottom left.
Scott B.
GPIB Software
National Instruments