1 :PREROUTING,OUTPUT 2 *nat 3 -p tcp -j REDIRECT --to-ports 42;=;OK 4 -p udp -j REDIRECT --to-ports 42-1234;=;OK 5 -p tcp -j REDIRECT --to-ports 42-1234 --random;=;OK 6 -j REDIRECT --to-ports 42;;FAIL 7