Article ID: 162055 - View products that this article applies to.
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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.
The Ipconfig and Winipcfg tools can display only the address of the first configured default gateway.
The following information is a sample of the output from the Ipconfig tool:
To determine which default gateways have been assigned, you can use the ROUTE command by typing the following line at a command prompt:
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. . . . . . . . . : 188.8.131.52 Subnet Mask . . . . . . . . : 255.255.248.0 Default Gateway . . . . . . : 184.108.40.206 DHCP Server . . . . . . . . : 220.127.116.11 Primary WINS Server . . . . : 18.104.22.168 Secondary WINS Server . . . : 22.214.171.124 Lease Obtained. . . . . . . : Friday, January 10, 1997 7:29:32 AM Lease Expires . . . . . . . : Wednesday, January 29, 1997 7:29:32 AM
route printThe following table is a sample of the output from the ROUTE PRINT command:
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.
Active Routes: Network Address Netmask Gateway Address Interface Metric 0.0.0.0 0.0.0.0 126.96.36.199 188.8.131.52 1 0.0.0.0 0.0.0.0 184.108.40.206 220.127.116.11 1 127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1 18.104.22.168 255.255.255.255 22.214.171.124 126.96.36.199 1 188.8.131.52 255.255.248.0 184.108.40.206 220.127.116.11 1 18.104.22.168 255.255.255.255 127.0.0.1 127.0.0.1 1 22.214.171.124 255.255.255.255 126.96.36.199 188.8.131.52 1 184.108.40.206 220.127.116.11 18.104.22.168 22.214.171.124 1 255.255.255.255 255.255.255.255 126.96.36.199 188.8.131.52 1
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:
(http://support.microsoft.com/kb/159168/EN-US/ )Multiple Default Gateways Can Cause Connectivity Problems
(http://support.microsoft.com/kb/128978/EN-US/ )Dead Gateway Detection in TCP/IP for Windows NT
Microsoft has confirmed this to be a problem in the products listed at the beginning of this article.
Article ID: 162055 - Last Review: February 27, 2014 - Revision: 3.0