Hello Sr,
You will need to enable logging
Example:
logging enable
logging buffered 7
Then do show loggin
and enjoy
You could also set up captures on each interface to capture the real traffic reaching that interface
Let's say you want to capture all traffic going to HTTP servers on the outside interface
cap capout interface outside match tcp any any eq 80 circular-buffer
Hope that I could help
Julio
Remember to rate all of the helpful posts
Julio Carvajal
Senior Network Security and Core Specialist
CCIE #42930, 2xCCNP, JNCIP-SEC