2.1 Transport

  • Article

FRS is RPC-based, and both FRS interfaces MUST use the following protocol sequence:

NCACN_IP_TCP

By default, FRS replication over RPC occurs dynamically over an available port by using RPC endpoint mapper (also known as RPCSS) which is on port 135 (see [C706] part 4). This behavior can be overridden by a static port assignment so that FRS replication traffic passes through a specific port.

The protocol MUST use the underlying RPC protocol that is being used as a transport for FRS to retrieve the identity of the caller that made the method call.

FRS MUST have registered the following two security providers:<4>

  • RPC_C_AUTHN_GSS_KERBEROS

  •  RPC_C_AUTHN_GSS_NEGOTIATE