[Beth <beth.tridium@xxxxxxxxx>]

tvb_new_subset doesn't allow me to change the contents, does it?  If it does, then you are correct that would be the easiest way.  But I thought that tvb data was considered constant, and if you needed to modify it then you should create a new tvb.

Somehow have to change that checksum of the frame that I am forwarding to the builtin dissector.