tshinder
Posts: 47659
Joined: 10.Jan.2001
From: Texas
Status: offline
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Hi Stephen,
check this out:
FIX: Server Publish May Fail on Dial-up Links
The information in this article applies to:
Microsoft Internet Security and Acceleration Server versions 2000, 2000 SP1
SYMPTOMS
If you use ISA Server to server publish on a dial-up adapter link (such as an analog modem, ISDN, or ADSL), the server publish operation may fail. This problem may occur although you use a fixed IP address on the dial-up interface.
When you run netstat -an from a command prompt on the computer running ISA Server, you see that ISA Server is not listening on the published port on behalf of the published service. Because of this, no connections can be made to the server published service.
Typically, this problem occurs on a slow link such as an analog modem connection. However, it may occur when you use any type of dial-up adapter.
To get the server publishing rule to work, you must turn off and then turn on the server publishing rule, or you must stop and then restart the Firewall Service.
CAUSE
ISA Server receives IP address change notifications from the operating system (OS) when the dial-up link is brought online. Sometimes, ISA Server may receive notifications before the IP address on the dial-up adapter is bound to the interface. This causes ISA Server to reject the dial-up interface as a valid interface for server publishing.
Additionally, ISA Server will miss the next notification (a few milliseconds later) from the OS when a valid IP address is bound to the dial-up adapter. Because ISA Server does not receive this second notification, it does not server publish on the dial-up interface. ISA Server can server publish on the dial-up interface again when it receives a new notification.
RESOLUTION
IMPORTANT: You must install ISA Server Service Pack 1 (SP1) before you install the following hotfix.
For additional information about how to obtain the latest ISA Server service pack, click the article number below to view the article in the Microsoft Knowledge Base:
Q313139 How to Obtain the Latest Internet Security and Acceleration Server
A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to computers that are experiencing this specific problem. This fix may receive additional testing. Therefore, if you are not severely affected by this problem, Microsoft recommends that you wait for the next that contains this fix.
To resolve this problem immediately, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:
http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS
NOTE: In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The typical support costs will apply to additional support questions and issues that do not qualify for the specific update in question.
To install the fix, run the self-extracting file. You do not have to restart the computer running ISA Server. If the computer is part of an ISA Server array, you do not have to shut down the whole array; you can still install this fix on a one-by-one basis.
The English version of this fix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.
Date Time Version Size File name
----------------------------------------------------------
3-Oct-2002 22:50 3.0.1200.179 176,912 Mspadmin.exe
3-Oct-2002 22:49 3.0.1200.179 388,368 W3proxy.exe
3-Oct-2002 22:50 3.0.1200.179 297,232 Wspsrv.exe
3-Oct-2002 22:50 3.0.1200.179 99,600 Msphlpr.dll
This fix also applies to the French, German, Spanish, and Japanese versions of ISA Server.
STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.
MORE INFORMATION
Note that although you have installed this hotfix, the Application Event Log may record informational events similar to the following:
Type: Information
Source: Microsoft Firewall
Event ID: 14161
Description:
Server publishing rule [My SMTP Publishing Rule] that maps
10.10.10.10 TCP to 192.168.10.10 for protocol [SMTP Server]
was applied successfully.
This rule previously failed, but now completed successfully.
This event occurs because the first notification that ISA Server receives from the OS, before the valid IP address on the dial-up adapter is bound to the interface, fails. The event does not affect ISA Server. When ISA Server receives the second notification, a few milliseconds later, it can server publish successfully.
First Published: Apr 12 2002 5:39AM
Keywords: kbnokeyword kbbug
=============
HTH,
Tom
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