iptables Packet Flow

forwarding

mangle PREROUTING

nat  PREROUTING

mangle FORWARD

filter FORWARD

mangle POSTROUTING

nat POSTROUTING

input

mangle PREROUTING


nat PREROUTING


mangle INPUT


filter INPUT

output

mangle OUTPUT

nat OUTPUT

filter OUTPUT

mangle POSTROUTING

nat POSTROUTING

local

mangle OUTPUT

nat OUTPUT

filter OUTPUT

filter INPUT

mangle INPUT