Port forward based on source IP
For Fortigate 500E (fortiOS6.0.9), can I do port forwarding base on source IP?
For example, if the client A (IP 126.96.36.199) try to access our internal FTP server, when it reach to the WAN interface of the Fortigate at port 21, I want it to forward to FTP server X at an internal IP 10.1.1.3 on port 21. All other clients (any IP which is NOT 188.8.131.52) reach WAN port 21 will be forward to a different FTP server Y at IP 10.1.1.4 on port 21.
Thanks for help.