celerra and clariion ip address change failure

Hi, i have attempted to change the ip address of a celerra ns120 and clariion controllers using clariion_mgmt.  The address change fails every time on the clariion controllers.

I have first changed the celerra ip address in celerra manager.

I have then first used the command /nas/sbin/clariion_mgmt -stop followed by /nas/sbin/clariion_mgmt -start -spa_ip A.B.C.D -spb_ip W.X.Y.Z -use_proxy_arp. This was unsuccessful and ctrlA ip address was changed to the default address. crtlB did not change. To overcome this failure i had to log into the clariion controller directly and change the ip back to the original one.

I then attempted to run the command /nas/sbin/clariion_mgmt -modify -spa_ip A.B.C.D -spb_ip W.X.Y.Z . Again, just the ctrlA address was changed and i can see this from navisphere. Celerra manager does not recognize the ip address change. I have changed the address back again by connecting directly to the controller.

At the moment i cannot bring ctrlA online successfully using the restore command from celerra manager. I have spent 3 hours trying to change the IP address!

Here is the output of /nas/sbin/clariion_mgmt -info. Please note that the status is stopped - perhaps this status should be started before i run the modify command.

Public IP address for SPA: xx.xxx.xx.xx
Public IP address for SPB: xx.xx.xx.xx
Start on boot            : yes
Current implementation   : Proxy-ARP
Status                   : Stopped

Can someone tell me how to do this? I have found the instructions but they are not working.

Mark