Article ID: 816910 - View products that this article applies to.
When you enable Network Load Balancing on the network adapter, you can no longer ping any of the IP addresses bound to that network adapter from another system.
Network Load Balancing in Windows 2003 requires the following support in network cards: the network adapter must support multi-packet receive indications. There is a limited number of server-class network adapters that fall in this category.
Use a server-class network adapter that supports multi-packet receive indications. To determine whether your network adapter supports multi-packet receive indications, download and run the Chknic.exe tool. To do this, visit the following Microsoft Web site: http://technet.microsoft.com/en-us/windowsserver/bb693323.aspx
(http://technet.microsoft.com/en-us/windowsserver/bb693323.aspx)Chknic.exe is included in the Microsoft Windows Server 2003 Resource Kit.
The following is an example of the output from the Chknic tool:
Device : Intel(R) PRO/100+ MiniPCI Physical address : 00-D0-59-10-EC-C6 Device is supported by NLB Device : Xircom Ethernet Adapter 10/100 Physical address : 00-80-C7-E4-B5-E4 Device is not supported by NLB
Article ID: 816910 - Last Review: December 3, 2007 - Revision: 4.7