Microsoft KB Archive/168469

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Article ID: 168469

Article Last Modified on 11/1/2006



APPLIES TO

  • Microsoft Windows NT Workstation 4.0 Developer Edition



This article was previously published under Q168469

SUMMARY

This article contains a copy of the Routing and Remote Access Upgrade for Microsoft Windows NT 4.0 Server Hotfix Pack 2.0 Release Notes. Version 2.0 has been replaced by version 3.0. Routing and Remote Access Upgrade for Microsoft Windows NT 4.0 Server Hotfix Pack 3.0 is available at:

NOTE: The above link is one path; it has been wrapped for readability.

You can find the original version at the following Microsoft ftp site:

NOTE: The above link is one path; it has been wrapped for readability.

WARNING: If you install the original (archived) version of this hotfix after you apply the later version, your system may become unusable. Microsoft does not recommend you install the original hotfix after you apply the later version.

MORE INFORMATION

Routing and Remote Access Upgrade for Microsoft Windows NT 4.0 Server Hotfix Pack 2.0 Release Notes

Please use this document to address questions which may arise during the installation of this Routing and Remote Access Hotfix Pack 2.0 for Microsoft Windows NT 4.0 Server.

Contents

  • Information on Installation


  • List of issues addressed


  • Known Problems


  • Fixes and Features included from Hotfix Update 1.0

Information on Installation

This Hotfix Pack requires that you already have Routing and Remote Access Service for Windows NT 4.0 Server installed on your system. Note that you must first apply the Windows NT 4.0 PPTP Update before applying the RRAS hotfix 2.0. For more information, please see the following article in the Microsoft Knowledge Base:

167040 PPTP Performance Update for Windows NT 4.0 Release Notes


This release includes the features and fixes from Routing and Remote Access Hotfix Update 1.0 and is packaged in an auto-install format. Copy the Hotfix to a temporary directory, and double-click the executable name or type the executable name rrasfixi.exe for x86, or rrasfixa.exe for alpha at a command prompt to install.

The files can also be extracted from the Hotfix Pack without installing them. To do this, copy the Hotfix to a temporary directory, and type rrasfixi /x or rrasfixa/x at a command prompt. After extracting the files, the Hotfix can be installed by typing hotfix at a command prompt.

To uninstall this update, type HOTFIX -Y from the directory you copied the files to.

Output of "HOTFIX -?":

   HOTFIX [-y] [-f] [-n] [-z] [-q] [-m] [-l]
      -y Perform uninstall (only with -m or -q)
      -f Force apps closed at shutdown
      -n Do not create uninstall directory
      -z Do not reboot when update completes
      -q Quiet or Unattended mode with no user interface
      -m Unattended mode with user interface
      -l List installed hotfixes
                

List of Issues Addressed

NT Issues Performance Issues:

  • This release includes an enhancement to TCP/IP that improves the performance of TCP-based applications over high latency networks, such as the Internet.

Routing Issues:

  • Added new Demand dial filters. You can now keep demand dial interfaces from dialing by setting filters using the Routemon.exe command with a new "Filtertype= Dial" option. The new syntax for this is the same for setting Input and Output filters using Routemon.exe, and can be seen by typing routemon ip set filter /? at a command prompt.

    The following is an example of the syntax used to prevent a demand dial interface from dialing:

    C:\>routemon ip add filter myremoterouter dial 0.0.0.0 0.0.0.0 0.0.0.0 0.0.0.0 any

    C:\>routemon ip set filter myremoterouter dial forward

    NOTE: The first example above is one line; it has been wrapped for readability.

    For more information on using the Routemon.exe command to set filters, please see the Routing and Remote Access Administrator's Guide.

  • Added the capability to filter fragmented IP packets. Two registry keys control this functionality.

          HKEY_LOCAL_MACHINE\System|CurrentControlSet\IPFilterDriver
          \Parameters
    
          EnableFragmentChecking REG_DWORD
                            


    Setting this to 1 enables fragment checks

          DefaultForwardFragments REG_DWORD
                            


    Setting this to 0 causes the filterdriver to drop fragments if they do not match a previous header.

  • Changes were applied to the Router's Remote Authentication Dial-In User Service (RADIUS) client to address a duplicate Acct-Session-Id accounting problem, as well as an issue that caused the reversal of the FramedIPAddress returned from a RADIUS server. In addition, the RADIUS client now sends the NAS-Port-Type and Acct- Session-Time attributes.

  • Resolved issue that used to cause an Access Violation when adding a Virtual Interface right after configuring an Area under OSPF routing. Adjusted the RIP Authentication type to 2 instead of 1, per RFC 1388.

    NOTE: This update must be applied to all Routing and Remote Access routers if you are using RIP2 authentication.

  • Resolved issue which could cause Mprouter to hang when doing an "ipconfig /release".

  • Made a change that ensures that periodic RIP route updates resume each time a demand-dial interface is reactivated.

Known Problems in this Update

  • Although there is a checkbox in the Global IP Config dialog to enable/disable filtering, at this time the only functionality it has is to visually show you if any filters have been configured on your interface(s). Regardless, the filter driver is always enabled. In order to disable filtering on an interface, you must use the per interface option in the Interface IP Config dialog.


  • Even though the "Filtertype= Dial" option has been properly configured for a demand dial interface, it might still be possible for that interface to dial. This only occurs if you are pinging from the command line of the Routing and RAS server in which the demand dial interface is configured.

Fixes and Features Included from Hotfix Update 1.0

New Features Added in Hotfix 1.0:

  • Allowing PPP clients to connect without authentication.

    This can be accomplished by altering the default registry key as shown:

          HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Rasman
          \PPP\ForceEncryptedPassword
                            


    (DWORD) 3 allows the server to accept incoming PPP clients without authentication.

  • Using MS-CHAP with RADIUS authentication.

    In order to enable MS-CHAP with RADIUS authentication, you must add a registry value

          HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Rasman
          \PPP\CHAP\OfferMSCHAP
                            


    and set it to (DWORD) 1.

    Once this is enabled every incoming PPP connection will be offered MS- CHAP, and MS-CHAP will be used to authenticate each PPP user against the RADIUS server that your RAS server is using.

List of Issues Fixed in Hotfix Update 1.0:

All bug fixes contained in this hotfix are listed below. You can query the Microsoft Knowledge Base (KB) to find an article about a specific bug by using the KB Qxxxxxx number that is assigned to the bug. The Microsoft Knowledge Base can be found on the Microsoft Web site at http://msdn.microsoft.com/support/.

KB# Brief Description



172290 Routing and Remote Access "Out of Buffers" Event Logs
176689 RRAS Requires hotfix when Using Proxy 2.0
173533 WinNT Radius Client Sends Incomplete Accounting Information
176506 Radius Accounting Only Logs One Entry for Multilink Client
173532 Radius Authentication Causes Access Violation in Mprouter.exe
172512 Routing and Remote Access Event ID 20100
176502 RAS Authentication Rechallenge Resets Compression Flag
176209 RAS or RRAS Server Fails to Answer Incoming Calls
167038 RAS Clients Run Winsock and RPC Applications Slowly
171061 RIP Does Not Advertise Zero Subnets
160517 RRAS May Decrement Local Static Route Metric
176082 RRAS Server Updates Link State Database but not Route Table
162834 RRAS Stops Routing After Encountering Zero Checksum
104296 RRAS Uses Larger MTU Than Other OSPF Routers

Information in this document is subject to change without notice and is provided for informational purposes only. The entire risk of the use or results of the use of this document remains with the user, and Microsoft Corporation makes no warranties, either express or implied. The names of companies, products, people, characters, and/or data mentioned herein are fictitious and are in no way intended to represent any real individual, company, product, or event, unless otherwise noted. Complying with all applicable copyright laws is the responsibility of the user. No part of this document may be reproduced or transmitted in any form or by any means, electronic or mechanical, for any purpose, without the express written permission of Microsoft Corporation.

Microsoft may have patents, patent applications, trademarks, copyrights, or other intellectual property rights covering subject matter in this document. Except as expressly provided in any written license agreement from Microsoft, the furnishing of this document does not give you any license to these patents, trademarks, copyrights, or other intellectual property.

(c) 1998 Microsoft Corporation. All rights reserved.

Microsoft, MS-DOS, MS, Windows, Windows NT, are either registered trademarks or trademarks of Microsoft Corporation in the U.S.A. and/or other countries.

Other product and company names mentioned herein may be the trademarks of their respective owners.


Additional query words: 4.00 rras

Keywords: kbinfo KB168469