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NetBiosNodeType Enumeration

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

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

public enum NetBiosNodeType

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

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, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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