2.1 Transport
The client and server MUST communicate over RPC by using the TCP/IP protocol sequence ncacn_ip_tcp.
This protocol uses RPC dynamic endpoints as defined in [C706], part 4.
The server interface MUST be identified by universal unique identifier (UUID) [b9785960-524f-11df-8b6d-83dcded72085], version 1.0.
The server MUST use the RPC security extensions specified in [MS-RPCE]. It MUST support the use of SPNEGO [MS-SPNG] [RFC4178] to negotiate security providers. The server MUST also register one or more security packages that can be negotiated by using this protocol.