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How to find time gap for a session

asked 2023-07-17 20:47:41 +0000

Subrun gravatar image

Hi,

I am doing a troubleshooting. I see when traffic is over f5 session get disconnected after 5 mins but not when it is dirrect ?

How can I proof from F5 capture that traffic is disconnecting after 5 mins from wireshark

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answered 2023-07-18 21:32:13 +0000

SYN-bit gravatar image

The default idle timeout in a TCP profile on F5 is 300 seconds. So it sounds perfectly logical. You can detect a 300 sec gap in all TCP session with the filter tcp.time_delta > 300 (either as a filter or by using the find function). The F5 may or may not close the session with a TCP RST. If it does, you can check the IP TTL and compare it with other packets from the source behind the F5.

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Asked: 2023-07-17 20:47:41 +0000

Seen: 359 times

Last updated: Jul 18 '23