hi, i have inherited a backup of clients through a firewall using firewall 
rules already configured. I have three clients that backup through the firewall 
using the existing rules. All three clients fail after approx 2 hours. The 
smaller savesets on these clients complete successfully. The two windows 
clients always fail at the same time (2 hours - 5 savesets 13gb completed). The 
unix client fails around the same time but can sometimes backup about 25gb 
before failing.
   
  How can i determine if the cause of failure is related to the fact that these 
clients go through a firewall? There are no error messages on the firewall logs 
during the time that the backup occurs or at the time that the backup stops.
   
  How can i determine if the cause of failure is related to the number of 
firewall ports that are open on the client. The open ports are 7937-7941and 
this is set using nsrports (these ports and rules were determined by previous 
engineer from EMC). The daemon.log shows no error - it says backup done and 
then restarts the saveset.
   
  Is it the firewall disconnecting the client backup OR are the networker 
services failing? We used to think that there was someting wrong with the 
filesystem on one client but now that we have added two more clients with the 
same errror it appears that the common link is the firewall.
   
  Thanks for any help, Mark 

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