You can use iSeries Netserver via iNav to share an IFS folder:
Login to open your connection to the iSeries
Click on File Systems
Click on File Shares. A list of all current shared IFS folders are listed.
Right Click on File Shares and open iSeries Netserver
Expand Shared Objects then right click on Shared Objects and select New then File
Enter Share Name and description, set access then Browse to select the IFS folder to share.