Hi,
When you configure the driver on Linux, you have to use IBCONF. IBCONF should show at the top of the screen a box saying "GPIB0" twice. The first one is the name of the GPIB board that the driver will use internally and the second one is the hostname that the driver will use to communicate with the ENET box. Since the driver defaults to a hostname of "GPIB0", you will need to make sure that you can get to the GPIB-ENET/100 box by referring to it as GPIB0 to the operating system. A good way to test this is to use the "ping" utility: type "ping GPIB0".
An entry for the GPIB-ENET in the hosts file would use the following format:
"Internet address (IP address)" "Official host name" "Alias"
For example, if the IP Address configured with the EthernetConfig utility is 130.164.156.50, IBCONF must indicate "gpib0" for the hostname and you must add the following line in the /etc/HOSTS file:
130.164.156.50 gpib0 gpib0
Check the link below:
http://digital.ni.com/public.nsf/websearch/F9180BC03E94CF3086256324006EB971?OpenDocument
If this works ok, than I would check for problems on the device side because the driver should be working ok then with IBIC commands.
Regards.
JV