If in the Cisco ASA logs if we are getting Reset-I or Reset-O What does it mean?

If a TCP connection has established between two hosts across the Cisco ASA, a TCP RESET-I in the log message means that the server from the inside is sending a reset to the PIX (which instructs the ASA firewall to drop the connection). The ASA then drops the connection and logs a RESET-I.

If the log message contains a TCP RESET-O, it indicates that the server on the outside is resetting the connection.