ext_if = 'tun0'        # external
int_if = 'dc0'         # internal


rdr pass on $ext_if proto tcp to port 47019 -> 192.168.0.69 port 47019
rdr pass on $ext_if proto tcp to port 47020 -> 192.168.0.69 port 47020
rdr pass on $ext_if proto tcp to port 47021 -> 192.168.0.69 port 47021
rdr pass on $ext_if proto tcp to port 47022 -> 192.168.0.69 port 47022
rdr pass on $ext_if proto tcp to port 47023 -> 192.168.0.69 port 47023
nat on $ext_if from !($ext_if) -> ($ext_if:0)

pass in log all
pass out log all