There is a brochure and map of footpaths in and around Ashfield that can be downloaded here. (This brochure is in PDF format. If you don't have a PDF reader on your computer you can download one free from Adobe.) Here is a view of the map from that brochure:
There are many good footpaths not only in Ashfield, but in surrounding parishes. Good walks can be had from Ashfield to Debenham, Framsden, Cretingham, Earl Soham, Monk Soham, Bedfield and as far as your feet will take you through wholly unspoiled countryside. Most of the paths are easy-going, though tend to be muddy in places during the winter half of the year.