Article ID: 888816 - View products that this article applies to.
Periodically, you cannot contact a Microsoft Windows 2000-based computer that is on your local network segment. For example, when you run the TCP/IP Ping.exe command, the response from this command indicates that the destination host cannot be found. Additionally, the following events may be recorded in the System log on the master or backup browser that is located on the local network segment:
Event ID: 8032
Event ID: 8021
This issue occurs when the following conditions are true:
To resolve this issue, turn off the proxy ARP feature. To do this, type the following command, and then press ENTER:
sysopt noproxyarp IPaddressNote IPAddress is the IP address of the internal network adaptor on the PIX firewall device.
When a client computer contacts the Windows 2000-based computer on the local network segment, the client computer receives a response from the PIX firewall device and from the Windows 2000-based computer. If the PIX firewall device responds first, the client computer caches the response in the ARP cache. However, the response that the computer caches includes a Media Access Control (MAC) address that is not correct. When this behavior occurs, the client computer will not be able to contact the Windows 2000-based computer or connect to it until the cached MAC address expires.
To verify that you are experiencing this issue, follow these steps on your client computer:
For more information about PIX firewalls, visit the following Cisco Systems Web site:
http://www.cisco.comThe third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.
Microsoft provides third-party contact information to help you find technical support. This contact information may change without notice. Microsoft does not guarantee the accuracy of this third-party contact information.
Article ID: 888816 - Last Review: October 30, 2006 - Revision: 1.2