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 theinstallation of this Routing and Remote Access Hotfix Pack 2.0 forMicrosoft 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 AccessService for Windows NT 4.0 Server installed on your system. Note that youmust first apply the Windows NT 4.0 PPTP Update before applying the RRAShotfix 2.0. For more information, please see the following article in theMicrosoft Knowledge Base:
PPTP Performance Update for Windows NT 4.0 Release Notes
This release includes the features and fixes from Routing and Remote AccessHotfix Update 1.0 and is packaged in an auto-install format. Copy theHotfix to a temporary directory, and double-click the executable name ortype 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 installingthem. To do this, copy the Hotfix to a temporary directory, and typerrasfixi /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
fromthe 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.
- 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 anyNOTE: The first example above is one line; it has been wrapped for readability.
C:\>routemon ip set filter myremoterouter dial forward
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
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:
(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
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 theMicrosoft Knowledge Base (KB) to find an article about a specific bug byusing the KB Qxxxxxx number that is assigned to the bug. The MicrosoftKnowledge Base can be found on the Microsoft Web site athttp://msdn.microsoft.com/support/
KB# Brief Description
Routing and Remote Access "Out of Buffers" Event Logs176689
RRAS Requires hotfix when Using Proxy 2.0173533
WinNT Radius Client Sends Incomplete Accounting Information176506
Radius Accounting Only Logs One Entry for Multilink Client173532
Radius Authentication Causes Access Violation in Mprouter.exe172512
Routing and Remote Access Event ID 20100176502
RAS Authentication Rechallenge Resets Compression Flag176209
RAS or RRAS Server Fails to Answer Incoming Calls167038
RAS Clients Run Winsock and RPC Applications Slowly171061
RIP Does Not Advertise Zero Subnets160517
RRAS May Decrement Local Static Route Metric176082
RRAS Server Updates Link State Database but not Route Table162834
RRAS Stops Routing After Encountering Zero Checksum104296
RRAS Uses Larger MTU Than Other OSPF Routers
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