configure
set firewall name WAN_IN rule 100 action accept
set firewall name WAN_IN rule 100 protocol tcp
set firewall name WAN_IN rule 100 destination port 3389
set firewall name WAN_IN rule 100 description “RDP”
set firewall name WAN_IN rule 100 source address 188.XXX.XXX.XXX
set service nat rule 100 type destination
set service nat rule 100 description “RDP”
set service nat rule 100 inside-address address 10.XX.XX.XX
set service nat rule 100 inside-address port 3389
set service nat rule 100 inbound-interface eth0
set service nat rule 100 protocol tcp
set service nat rule 100 log disable
commit
save