There are 2 types of NAT implementation.
when you use "in" and "out" at same time. it's PRE-ROUTING NAT
when you use "out" with "output-feature" keyword . it's POST-ROUTING NAT.
no matter what type of NAT you choose to use, there are 2 import thing you
need to do,
first,enable nat
second,make su
I would advise trying command below:
nat44 plugin enable sessions 63000
nat44 forwarding enable
set nat timeout udp 3000 tcp-established 7440 tcp-transitory 2400 icmp 600
set interface nat44 out {wan1} output-feature
nat44 add static mapping tcp local 192.168.1.20 external 4.4.4.4
nat44 add inter
