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Home : CCSP-Cisco Certified Security Professional : IPSec Data Transfer-Session Termination

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IPSec Data Transfer-Session Termination

Sep 25,2009 by alperen

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Step 4�"IPSec Data Transfer

Information is exchanged via the IPSec session based on the method for defining interesting traffic. Packets are encrypted and decrypted at the IPSec peers using any encryption specified in the IPSec SA.

Step 5�"Session Termination

The IPSec session can be terminated because the traffic ended and the IPSec SA was deleted or the SA can time �"out based on either SA lifetime setting. The SA timeout can be after a specified number of seconds or a specified number of bytes passed through the connection. The keys are discarded when SAs terminate, requiring IKE to perform a new Phase Two and, possibly, a new Phase One negotiation. New SAs can be established before the current ones expire, maintaining uninterrupted data flows. cp9IPSec S

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