Turn off multicast name resolution

Specifies that link local multicast name resolution (LLMNR) is disabled on the DNS client. LLMNR is a secondary name resolution protocol. With LLMNR, queries are sent using multicast over a local network link on a single subnet from a DNS client to another DNS client on the same subnet that also has LLMNR enabled. LLMNR does not require a DNS server or DNS client configuration, and provides name resolution in scenarios in which conventional DNS name resolution is not possible. If you enable this policy setting, LLMNR will be disabled on all available network adapters on the DNS client. If you disable this policy setting, or you do not configure this policy setting, LLMNR will be enabled on all available network adapters.

Policy Details

Policy Name

Turn_Off_Multicast

Registry Key

Software\Policies\Microsoft\Windows NT\DNSClient

Value Name

EnableMulticast

Supported On

At least Windows Vista

OMA-URI (CSP)

ADMX_DnsClient/Turn_Off_Multicast

OS Build Version:10.0.22000, 10.0.19043.1202, 10.0.19042.1202, 10.0.19041.1202

CSP Version:10.0

Conflict Resolution:LastWrite

Allowed Editions:

EnterpriseEnterprise NProfessionalProfessional NEnterprise EvaluationEnterprise N EvaluationEducationEducation NEnterprise SEnterprise S NEnterprise S EvaluationEnterprise S N EvaluationHolographic BusinessPro Single LanguagePro ChinaPro WorkstationPro Workstation NPro For EducationPro For Education NEnterprisegEnterprisegnServerrdshIotenterpriseIotenterprisesCloudeditionnCloudeditionIotenterpriseskIotenterpriseseval

Policy State Values

Enabled: 0

Disabled: 1

Available Languages

en-us