I have some "trusted IPs" that I want to allow full access to my machine with "minimal performance impact". The
PREROUTING -t mangle is the first chain a packet will pass, entering the system. Is it valid/allowed to use an
-j ACCEPT in the
PREROUTING -t mangle Chain??
I am not sure this is allowed, as the PREROUTING chain is before(!!) the internal ROUTING. What happens if I accept a packet in the PREROUTING Chain, will this packet then nevertheless be routed correctly or will -j ACCEPT lead to "bypassing" the Routing?