DOCUMENT:Q101470  19-JUL-1993  [W_NT]
TITLE   :INF: "Invalid Argument" Error in Route
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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To use the route utility to define a route for an entire subnet to a
specified gateway, specify a zero (0) for the portion of the IP
address that pertains to the host.

For example, to route all packets destined for net 139.6 to the
gateway at 139.3.0.1, use the following syntax:

   ROUTE ADD 139.6.0.0 139.3.0.1

If you do not specify the zeros in the host portion of the IP address,
the route utility returns an "Invalid Argument" error.
 
Additional reference words: 3.10 AS TCPIP Subnet ntas

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