Article: Q155986
Product(s): Microsoft Windows NT
Version(s): winnt:
Operating System(s):
Keyword(s): kbnetwork
Last Modified: 09-AUG-2001
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The information in this article applies to:
- Microsoft Windows NT Server
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SYMPTOMS
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When you communicate using NetBIOS over TCP/IP (NetBT) to a device that uses the
second interface of a multihomed Windows NT client, the initial session
establishment is slow.
CAUSE
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This problem will only be seen in environments in which the subnets on both
sides of the Windows NT client are not configured to communicate with each
other.
RESOLUTION
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Define a route, either per client or on the routers, to allow accessibility to
both adapters on the computer running Windows NT Server.
MORE INFORMATION
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NetBT first defines the IP address on the source packet of a three-way handshake
using the IP address of the adapter that resolved the name. If this fails, NetBT
uses the IP address of the second adapter. This can cause a delay of up to 50
seconds in the establishment of the connection.
NOTE: In Windows NT version 4.0 and Windows NT version 4.0 Service Pack 2,
significant network connection enhancements have been added to improve
connectivity for multi-homed computers. For detailed information, please see the
following articles in the Microsoft Knowledge base:
ARTICLE ID: Q161425
TITLE: WinNT 4.0 SP2 Multihomed Computer Connection Enhancement
ARTICLE ID: Q166159
TITLE: NetBIOS Connections from a Multihomed Computer
Additional query words:
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Keywords : kbnetwork
Technology : kbWinNTsearch kbWinNTSsearch
Version : winnt:
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