[ibr-dtn] Previous Hop Information for IBR-DTN

Hello, I am currently implementing a newer version of the EBR network coding router in IBR-DTN and one of the requirements is to keep track of when and from whom I got my last bundles from. Does IBR-DTN keep track of the previous hops for each of the bundles? Do forwarded bundles update with new information in intermediate nodes? Thank you.

Carson Dunbar