Tuesday, January 9, 2018

Interpreting ASA syslog connection messages

Hey r/networking,

Looking to get a little help interpreting the following syslog message from my ASA firewall, mainly if it's possible to tell from which side the "TCP FIN" was sent first:

Jan 09 09:29:34 CST: %ASA-session-6-302014: Teardown TCP connection 1202854902 for outside:64.x.x.x/11020 to inside:192.168.x.x/57494 duration 2:34:20 bytes 1572060 TCP FINs

These sessions shouldn't be dropping, and I really need to know which end is sending the initial FIN first.

Any help is appreciated.



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