if u r using 2 network card u can do it by defining source network to dst network on same interface-suppose u have to interface
and at local u have configured 172.17.X.X/X and 192.168.X.X/X
in queue u may define as
if src-adddress 172.17.X.X/X dst-address 192.168.X.X interface locat limit at 0
i think it will solve ur problems.