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Q255991: XCON: How to Configure an X.400 Connector with RRAS over TCP/IP

Article: Q255991
Product(s): Microsoft Exchange
Version(s): winnt:5.5
Operating System(s): 
Keyword(s): exc55
Last Modified: 17-JUN-2002

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The information in this article applies to:

- Microsoft Exchange Server, version 5.5 
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IMPORTANT: This article contains information about editing the registry.
Before you edit the registry, make sure that you understand how to restore it if
a problem occurs. For information about how to do this, see the "Restoring the
Registry" Help topic in Regedit.exe or the "Restoring a Registry Key" Help topic
in Regedt32.exe.

SUMMARY
=======

To properly configure the X.400 connector to send mail via a Routing and Remote
Access Server (RRAS) link, you must complete the following steps:

- Configure the Demand Dial Interfaces using the provided wizard.

- Create the static route.

- Decide upon the TCP/IP networks you will use for the RAS pool.

- Configure the X.400 connector.

MORE INFORMATION
================

Complete the following steps on both servers.

Step One: Configure the Demand Dial Interface (DDI)
---------------------------------------------------

1. Open the Routing and RAS Administrator.

2. Right-click "LAN and Demand Dial Interfaces".

3. Click Add New Interface. "Confirm that Use Demand Dial Wizard" check box is
  selected.

4. Select a name for the Demand Dial Interfaces (DDI). This will be the same
  name used for the interface on the other side of the RRAS link.

5. Click to select the following check boxes on the next dialog box:

   - Route IP Packets on this interface

   - Add a user account so a remote router can dial in

   - Authenticate remote router when dialing out

6. Enter the phone number for the remote server.

7. Enter the credentials that this interface will use to authenticate when
  dialing the remote server. These credentials must match the credentials
  configured on the remote server.

8. Set the credentials that the remote server will use to authenticate when it
  dials this server.

  For simplicity's sake, the credentials on both domains should have the same
  name and password. Also, the user name will be the same as the name used for
  the DDI.

9. Click Finish to configure the interface.

Step Two: Create the Static Route
---------------------------------

1. Open the Routing and RRAS Administrator.

2. Expand IP Routing.

3. Right-click Static Routes and click Add Static Route.

4. Enter the following values:

   - Destination: The Network ID for the remote server. For example, if the
     remote server's NIC IP address is 192.168.100.15, the Network ID will be
     192.168.100.0.

   - Subnet Mask: 255.255.255.0

   - Gateway: 1.1.1.1

   - Interface: Select the DDI previously configured.

Step Three: Configure the RAS Pool
----------------------------------

1. Open the Network tool in Control Panel and click the Services tab.

2. Double-click "Routing and Remote Access".

3. Click Network, and then click the Configure button next to the TCP/IP check
  box.

4. Click "Use static address pool" and type the network ID and subnet mask. A
  good choice is a network address from the 192.168.0.0 private range. One
  example would be 192.168.1.0 with a mask of 255.255.255.248. This would give
  you 5 addresses for clients. For this scenario, only one client address is
  required. If you require more, just adjust the last octet of the subnet mask.
  A subnet mask of 255.255.255.0 would provide a pool of 253 client addresses.

5. Click OK to save your changes and restart the server when prompted.

Step Four: Configure the X.400 Connector
----------------------------------------

All settings for the X.400 connector are the same when connecting by RRAS instead
of by LAN, except for the following:

1. Use the IP address for the remote server on the Stack tab.

2. Change the default settings for the following fields on the Override tab of
  the connector.

   - Checkpoint Size - 15

   - Recovery Timeout - 30

   - Max Open Retries - 7

   - Open Interval - 120

   - Lifetime 15

   - Disconnect 15

3. When RRAS is installed on a server, it is, in effect, dual-homed. If RRAS
  and Exchange Server are on the same server you must add the following
  registry setting so that the message transfer agent (MTA) specifies which IP
  address the lower
  layers of the IP Stack are to use as the destination address.

  Without this registry setting, it is possible that the IP address of the
  WAN-wrapper is what will be used as the destination address. In that case,
  the X.400 connector on the remote server will compare the IP address it is
  receiving to the one on its Stack tab. These will not match and the
  association will fail. You will see an Event ID 9301 in the Application Log
  of the remote server.

  Your Exchange Server computer must have Service Pack 1 installed to
  configure this setting. Refer to the following Microsoft Knowledge Base
  article for more information.

  Q197378 XCON: MTA Generates 9301 Events on Incoming Connections

  WARNING: Using Registry Editor incorrectly can cause serious problems that may
  require that you reinstall your operating system. Microsoft cannot guarantee
  that problems that result from the incorrect use of Registry Editor can be
  solved. Use Registry Editor at your own risk.

  For information about how to edit the registry, see the "Changing Keys and
  Values" Help topic in Registry Editor (Regedit.exe) or the "Add and Delete
  Information in the Registry" and "Edit Registry Data" Help topics in
  Regedt32.exe. Microsoft recommends that you back up the registry before you
  edit it. If you are running Windows NT or Windows 2000, Microsoft also
  recommends that you update your Emergency Repair Disk (ERD).

  a. Start Registry Editor.

  b. Find the following registry key:

  HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MSExchangeMTA\Parameters

  c. On the Edit menu, click Add Key, and add the following registry key value,
     with no entry for class:

  X400ConnectorName

     This is the directory name of the X.400 Connector.

  d. On the Edit menu, click Add Value and add the following value under the
     key just created.

  Name: Stack IP Address Override
  Class: REG_SZ:
  Value: The IP address for the NIC on this server

  The value entered here will match the IP address on the Stack tab of the X.400
  connector on the remote server. When that MTA compares the IP address in the
  packet stream with what is on the Stack tab, it will find a match and an
  association will be established.

Additional query words:

======================================================================
Keywords          : exc55 
Technology        : kbExchangeSearch kbExchange550 kbZNotKeyword2
Version           : winnt:5.5
Issue type        : kbhowto

=============================================================================

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