Cisco lispers.net Cisco This draft augments the signal-free LISP Multicast RFC 8378 and RFC6831 to support multicast underlays between LISP sites. This draft defines the many-to-1, 1-to-many, and many-to-many relationship between multicast EIDs and the Replication List Entries (RLEs) RLOC records they map to. The mechanisms in this draft allow a multicast LISP overlay to run over a mixed underlay of unicast and/or multicast functionality.