Microsoft KB Archive/247604

TCP/IP Does Not Support Blackhole or Reject Routes ID: Q247604 The information in this article applies to: Microsoft Windows 2000 Server SYMPTOMS The Transmission Control Protocol/Internet Protocol (TCP/IP) protocol in Microsoft Windows 2000 Server does not provide a 'blackhole' (or reject) route to silently drop a packet that cannot be forwarded to its destination. This situation can cause routing loops. RESOLUTION To work around this behavior, create an IP-in-IP tunnel that uses one of the router's normal IP addresses as a source address and 127.0.0.1 as a destination address. Then add a 'blackhole' route as a static route over this interface. STATUS This behavior is by design. Additional query words: rras route Keywords : Version : WINDOWS:2000 Platform : WINDOWS Issue type : kbbug

Last Reviewed: December 29, 1999 © 2000 Microsoft Corporation. All rights reserved. Terms of Use.