Turn on Responder (RSPNDR) driver

This policy setting changes the operational behavior of the Responder network protocol driver.

The Responder allows a computer to participate in Link Layer Topology Discovery requests so that it can be discovered and located on the network. It also allows a computer to participate in Quality-of-Service activities such as bandwidth estimation and network health analysis.

If you enable this policy setting, additional options are available to fine-tune your selection. You may choose the "Allow operation while in domain" option to allow the Responder to operate on a network interface that's connected to a managed network. On the other hand, if a network interface is connected to an unmanaged network, you may choose the "Allow operation while in public network" and "Prohibit operation while in private network" options instead.

If you disable or do not configure this policy setting, the default behavior for the Responder will apply.

Supported on: At least Windows Vista
Registry HiveHKEY_LOCAL_MACHINE
Registry PathSoftware\Policies\Microsoft\Windows\LLTD
Value NameEnableRspndr
Value TypeREG_DWORD
Enabled Value1
Disabled Value0

Allow operation while in domain
Registry HiveHKEY_LOCAL_MACHINE
Registry PathSoftware\Policies\Microsoft\Windows\LLTD
Value NameAllowRspndrOnDomain
Value TypeREG_DWORD
Default Value0
True Value1
False Value0
Allow operation while in public network
Registry HiveHKEY_LOCAL_MACHINE
Registry PathSoftware\Policies\Microsoft\Windows\LLTD
Value NameAllowRspndrOnPublicNet
Value TypeREG_DWORD
Default Value0
True Value1
False Value0
Prohibit operation while in private network
Registry HiveHKEY_LOCAL_MACHINE
Registry PathSoftware\Policies\Microsoft\Windows\LLTD
Value NameProhibitRspndrOnPrivateNet
Value TypeREG_DWORD
Default Value0
True Value1
False Value0

linklayertopologydiscovery.admx

Administrative Templates (Computers)

Administrative Templates (Users)