DOCUMENT:Q162055 08-AUG-2001 [crossnet]
TITLE :Ipconfig and Winipcfg Display Only One Default Gateway Address
PRODUCT :Windows for Workgroups and Windows NT Networking Issues
PROD/VER:WINDOWS:3.11,95; WINNT:3.5,3.51,4.0
OPER/SYS:
KEYWORDS:kbnetwork kbtool win95
======================================================================
-------------------------------------------------------------------------------
The information in this article applies to:
- Microsoft Windows NT Workstation versions 3.5, 3.51, 4.0
- Microsoft Windows NT Server versions 3.5, 3.51, 4.0
- Microsoft Windows NT Server, Enterprise Edition version 4.0
- Microsoft TCP/IP-32 for Windows for Workgroups, versions 3.11, 3.11a, 3.11b
- Microsoft Windows 95
-------------------------------------------------------------------------------
SYMPTOMS
========
The Ipconfig and Winipcfg tools display only one default gateway address when
you have configured the Transmission Control Protocol/Internet Protocol (TCP/IP)
to use more than one default gateway.
CAUSE
=====
The Ipconfig and Winipcfg tools can display only the address of the first
configured default gateway.
MORE INFORMATION
================
The following information is a sample of the output from the Ipconfig tool:
Windows NT IP Configuration
Host Name . . . . . . . . . : MYPC
DNS Servers . . . . . . . . :
Node Type . . . . . . . . . : Mixed
NetBIOS Scope ID. . . . . . :
IP Routing Enabled. . . . . : No
WINS Proxy Enabled. . . . . : No
NetBIOS Resolution Uses DNS : No
Ethernet adapter Elnk31:
Description . . . . . . . . : ELNK3 Ethernet Adapter.
Physical Address. . . . . . : 00-C0-4F-D7-DB-91
DHCP Enabled. . . . . . . . : Yes
IP Address. . . . . . . . . : 100.50.84.54
Subnet Mask . . . . . . . . : 255.255.248.0
Default Gateway . . . . . . : 100.50.80.1
DHCP Server . . . . . . . . : 100.50.40.9
Primary WINS Server . . . . : 100.50.16.153
Secondary WINS Server . . . : 100.50.16.155
Lease Obtained. . . . . . . : Friday, January 10, 1997 7:29:32 AM
Lease Expires . . . . . . . : Wednesday, January 29, 1997 7:29:32 AM
To determine which default gateways have been assigned, you can use the ROUTE
command by typing the following line at a command prompt:
route print
The following table is a sample of the output from the ROUTE PRINT command:
Active Routes:
Network Address Netmask Gateway Address Interface Metric
0.0.0.0 0.0.0.0 100.50.80.2 100.50.84.54 1
0.0.0.0 0.0.0.0 100.50.80.1 100.50.84.54 1
127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1
100.50.41.50 255.255.255.255 100.50.80.2 100.50.84.54 1
100.50.80.0 255.255.248.0 100.50.84.54 100.50.84.54 1
100.50.84.54 255.255.255.255 127.0.0.1 127.0.0.1 1
100.50.255.255 255.255.255.255 100.50.84.54 100.50.84.54 1
224.0.0.0 224.0.0.0 100.50.84.54 100.50.84.54 1
255.255.255.255 255.255.255.255 100.50.84.54 100.50.84.54 1
The lines that have a 0.0.0.0 network address indicate that there are two
assigned default gateways. The Tracert utility can be used to find out which
default gateway is active.
NOTE: Only one of the default gateways is used for each network adapter. If you
assign more than one default gateway address, the second address is used only if
the Dead Gateway Detection feature determines that the first gateway is not
operational.
For more information about dead gateway detection, see the following articles in
the Microsoft Knowledge Base:
Q159168 Multiple Default Gateways Can Cause Connectivity Problems
Q128978 Dead Gateway Detection in TCP/IP for Windows NT
STATUS
======
Microsoft has confirmed this to be a problem in the products listed at the
beginning of this article.
Additional query words: tcpip
======================================================================
Keywords : kbnetwork kbtool win95
Technology : kbWinNTsearch kbWinNTWsearch kbWinNTW400 kbWinNTW400search kbWinNT351search kbWinNT350search kbWinNT400search kbWinNTW350 kbWinNTW350search kbWinNTW351search kbWinNTW351 kbWinNTSsearch kbWinNTSEntSearch kbWinNTSEnt400 kbWinNTS400search kbWinNTS400 kbWinNTS351 kbWinNTS350 kbWinNTS351search kbWinNTS350search kbAudDeveloper kbWin95search kbTCPIPSearch kbZNotKeyword3 kbTCPIP311 kbTCPIP311a kbTCPIP311b
Version : WINDOWS:3.11,95; WINNT:3.5,3.51,4.0
Issue type : kbprb
=============================================================================
THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS
PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS
ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO
EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR
ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL,
CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF
MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION
OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES
SO THE FOREGOING LIMITATION MAY NOT APPLY.
Copyright Microsoft Corporation 2001.