(racoon 759) Problem in Racoon while continuously pumping data

Hi,
         I am using racoon on both side and continuously pumping data on 
UDP from one side and receiving the same on the other side. The problem i 
am facing is that , after few mins while hard lifetime expires a new SA is 
created but  the data pumping and the data receiving applications are not 
switching to the new SA. As a result the both the application just stopped 
without any  indication . Can any one please tell me what is the problem ?


Regards
Amit Kumar Ray
Software Engineer
Hughes Software System
Gurgaon Facility
India

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