Which device, in a LISP routing architecture, receives and de-encapsulates LISP traffic for endpoints within a LISP-capable site?

An MR (Map Resolver) is responsible for receiving LISP map-requests from an ITR and forwarding them to the appropriate Map Server (MS).

An ETR (Egress Tunnel Router) receives LISP-encapsulated IP packets destined for endpoints in its LISP site, de-encapsulates them, and then forwards the original IP packets to the correct destination host within its site.

An MS (Map Server) receives map-register messages from ETRs, stores the EID-to-RLOC mappings, and responds to map-requests forwarded by Map Resolvers.

An ITR (Ingress Tunnel Router) is responsible for receiving IP packets from non-LISP hosts or sites and encapsulating them with a LISP header before forwarding them towards the destination ETR.