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NetBiosNodeType Enumeration

Specifies the Network Basic Input/Output System (NetBIOS) node type.

Namespace:  System.Net.NetworkInformation
Assemblies:   System.Net.NetworkInformation (in System.Net.NetworkInformation.dll)
  System (in System.dll)

public enum class NetBiosNodeType

Member nameDescription
BroadcastA broadcast node.
HybridA hybrid node.
MixedA mixed node.
Peer2PeerA peer-to-peer node.
UnknownAn unknown node type.

The node type determines the way in which NetBIOS names are resolved to Internet Protocol (IP) addresses. The following table shows the name resolution method for each node type.

Node type

Resolve name to IP address


Uses NetBIOS name queries.


Uses a NetBIOS name server (NBNS), for example, Windows Internet Name Service (WINS).


Attempts to resolve by first using NetBIOS name queries and then using an NBNS.


Attempts to resolve by first using an NBNS and then using a NetBIOS name query.

This enumeration is used to specify values for the NodeType property.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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