Multiple IP Addresses Cause Dynamic Packet Filter to Fail (176922)
The information in this article applies to:
- Microsoft Proxy Server 2.0
This article was previously published under Q176922 SYMPTOMS
Dynamic packet filters may fail to open and allow ANY traffic to pass
to or from Microsoft Proxy Server version 2.0. The packet filter driver
will still filter Internet requests; however, it will not allow data
to pass into or out from the Proxy Server.
CAUSE
Enabling packet filtering and having more than one IP address bound to the
external network interface of the Proxy Server causes this problem.
Internally there was a problem with the member computation and the address
check routine.
RESOLUTION
This problem is resolved in Microsoft Proxy Server 2.0 Service Pack 1 (SP1). For more information about Service Pack 1, please see the following article in the Microsoft Knowledge Base:
238375 Proxy Server 2.0 Service Pack 1: List of Fixes
WORKAROUND
To work around this problem, remove the extra IP addresses from the external
network interface of the Proxy Server. If more than one IP address is
required, up to two additional external network cards can be installed. The
Proxy Server 2.0 packet filter can support a maximum of three external
network adapters.
STATUS
Microsoft has confirmed this to be a problem in Proxy Server 2.0
| Modification Type: | Minor | Last Reviewed: | 9/22/2005 |
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| Keywords: | kbHotfixServer kbQFE kbbug kbFAQ kbfix KB176922 |
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