LLMNR
Link-Local Multicast Name Resolution
Protocol
The Link-Local Multicast Name Resolution (LLMNR) is a protocol based on the Domain Name System (DNS) packet format that allows both IPv4 and IPv6 hosts to perform name resolution for hosts on the same local link. It is included in Windows Vista, Windows Server 2008, Windows 7, Windows 8, Windows 10.[1] It is also implemented by systemd-resolved on Linux.[2] LLMNR is defined in RFC 4795 but was not adopted as an IETF standard.[3]
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As of April 2022, Microsoft has begun the process of phasing out both LLMNR and NetBIOS name resolution in favour of mDNS.[4]