1.7 Versioning and Capability Negotiation

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Supported Transports: This protocol uses RPC over SMB, as specified in [MS-SMB], as its only supported transport. For transport details, see section 2.1.

Protocol Version: This protocol's RPC interface has a single version number of 4.1. This protocol can be extended without altering the version number by adding RPC methods to the interface with opnums lying numerically beyond those defined in this specification. A client determines whether such methods are supported by attempting to invoke the method; if the method is not supported, the RPC server returns an "opnum out of range" error, as specified in [C706] and [MS-ERREF]. For the RPC interface, see [MS-RPCE].<2>

Security and Authentication Methods: For security considerations, see sections 3.1.3 and 3.2.3.