how to communicate with a HP network analyzer through GPIB Ethernet controller

[ss25]

through NI Max, I am able to see my GPIB ethernet controller, but I am not able to see the instrument connected. I have the HP-IB address for the network analyzer as 

for 8751: 17

controller: 21

these were taken from the local properties of the instrument. In NI Max, under the general settings of the GPIB interface properties, what should I mention in the primary address and secondary address column to be able to communicate with my network analyzer. Moreover, should I keep the system controller option ticked or should I unmark it ?. Awaiting response asap.

Thanks in advance !!!

[crossrulz]

In MAX, there is a Scan For Instruments under the GPIB.  Your instrument should just be detected from that.

[ss25]

I scanned for instruments under GPIB control, but still it shows no instruments added 

[crossrulz]

Wait a minute.  Why is your controller at address 21?  You GPIB card should be at address 0 and made the master.

[ss25]

21 is the HPIB address of the controller in the network analyzer. The suggestion is: I change this controller HPIB address to 0 and try communicating. But this is the default address given in the manual of the network analyzer.  

[crossrulz]

Now you are just being confusing.  Exactly what hardware do you have?  How exactly is everything connected?

[ss25]

Hey, 

 sorry for the miscommunication. Now I can see my instrument after changing manually the controller HPIB address in the network analyzer from its default value of 21 to 0 as suggested. Thanks for your valuable guidance.