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I was not able to find enough documentation about ASA's internal order of operation so after testing with packet-tracer I made 2 flow charts.
I am open to any recommendations in order to fix/improve the 2 charts (for example I want to add the VPN encrypt/decrypt phases, but I haven't tested yet).
I would also like to confirm the following lists:
INSIDE -> OUTSIDE
1. Route Lookup
2. RPF (Antispoofing)
4. Source NAT
OUTSIDE -> INSIDE
1. RPF (Antispoofing)
3. UN-NAT (Destination NAT)
4. Route lookup