client ipc max protocol

The value of the parameter (a string) is the highest
protocol level that will be supported for IPC$ connections as DCERPC transport.

Normally this option should not be set as the automatic
negotiation phase in the SMB protocol takes care of choosing
the appropriate protocol.

The value default refers to the latest
supported protocol, currently SMB3_11.

See for a full list
of available protocols. The values CORE, COREPLUS, LANMAN1, LANMAN2
are silently upgraded to NT1.

Example: SMB2_10

Supported on: At least Microsoft Windows 7 or Windows Server 2008 family

client ipc max protocol

Registry HiveHKEY_LOCAL_MACHINE
Registry PathSoftware\Policies\Samba\smb_conf\client ipc max protocol
Value Nameclient ipc max protocol
Value TypeREG_SZ
Default Valuedefault

samba.admx

Administrative Templates (Computers)