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Beginner

Receiving a Syn packet during the timoeut of half closed connection

Hello,

 

I have a simple question to understand the behavior from the ASA side.

 

Once the connection is marked as half-closed , during that ( 30 seconds ) if the ASA will receive a syn packet related to the original connection what will happen exactly ? 

 

it will refresh the connection and raise the timeout back to 1hour ?

 

thanks

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VIP Advisor

Hi,

ASA will start a new connection if it is received with different port
numbers. If it is received with same port numbers, ASA will drop it because
its out of sequence. In half closed ASA will expect FIN/FIN-ACK/ACK


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