Turn on Responder (RSPNDR) driver

Policy ID
LLTD_EnableRspndr
Scope
Computer Configuration
Supported on
At least Windows Vista
Source
Administrative Templates (.admx) for Windows 11 2026 Update (26H2) (version 1.0)
Category
Network › Link-Layer Topology Discovery

Description

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.

Options

The empty box and the checked box tell the checkbox items of the Group Policy editor apart (a checked box is an item that is selected by default).

  • Allow operation while in domain
  • Allow operation while in public network
  • Prohibit operation while in private network

Registry

ComputerHKEY_LOCAL_MACHINE
  • EnableRspndrREG_DWORD
  • AllowRspndrOnDomainREG_DWORD
  • AllowRspndrOnPublicNetREG_DWORD
  • ProhibitRspndrOnPrivateNetREG_DWORD

Other policies in the same category

View all policies in this category (2)