DOCUMENT:Q102902  01-SEP-1993  [W_NT]
TITLE   :INF: How to Modify the NetBEUI Frame Source Routing Bit
PRODUCT :Windows NT
PROD/VER:3.10
OPER/SYS:WINDOWS
KEYWORDS:

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The information in this article applies to:
 
 - Microsoft Windows NT operating system, version 3.1
 - Microsoft Windows NT Advanced Server, version 3.1
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With Windows NT on a Token Ring network, the Source Routing bit can be
modified to support bridging hardware that cannot forward frames with
routing information. To configure Windows NT so that only half of the
NetBEUI frames (NBF) include source routing information when they
query a remote server, use the following procedure.
 
Use the Registry Editor (REGEDT32.EXE) to change the value for
QueryWithoutSourceRouting.
 
To modify the QueryWithoutSourceRouting value, use the following path
in the Registry:
 
   HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\NBF\Parameters
 
Change the value for QueryWithoutSourceRouting to 1.

Source Routing is offered in Token Ring networks only and allows
NetBEUI to be routed. Source Routing occurs when NetBEUI broadcasts a
name query frame on a local token ring; if it doesn't receive a
response in a set period of time, it enables Source Routing fields in
the token ring frame that will cause Source Routing Bridges to
recognize the frame. The Source Routing Bridges add additional routing
information to the frame and send it to all the other rings. When the
frame reaches the desired host, the host will use the routing
information added to reply directly to the originating node. The
originating node then caches the routing information returned by the
remote host to address subsequent frames sent to the remote hosts.

Additional reference words: 3.10
KBCategory:
KBSubcategory: netserv

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