This procedure is necessary for deployment of Exchange 2010 in a cross-forest topology using Service Pack 1 (SP1) for ILM 2007 Feature Pack 1 (FP1). See step 3 in "Deploy Exchange 2010 in a cross-forest topology with SP1 for ILM 2007 FP1" earlier in this topic.

1. In SP1 for ILM 2007 FP1, select Management Agents from the toolbar, and then under Actions, click Create.
   
   
2. On the Create Management Agent page, under Management agent for, select Active Directory global address list (GAL).
   
   
3. In the Name box, type a name for this management agent. When creating the name, we recommend that you include the name of the source forest from which this management agent will gather recipient information.
   
   
4. In the Description box, type a description for this management agent, and then click Next.
   
   
5. On the Connect to Active Directory Forest page, complete the following fields:
   
   
   • Forest name   Name of the source forest.
     
     
   • User name and Password   User name and password of an account that has permission to read schema information from the source forest.
     
     
   • Domain   Domain for the specified account.
     
     

     Note:
     You can also enter the user name as <user>@<domain> and leave the domain field blank.

6. Click Next.
   
   
7. On the Configure Directory Partitions page, select the directory partitions on the source forest from which you want to project data to a destination forest.
   
   
8. On the Configure Directory Partitions page, click Containers.
   
   
9. On the Select Containers page, clear the top-level check box for the directory partition, select the containers for which this management agent will gather and store information, and then click OK. Be sure to select the container in which ILM will create contacts for each mailbox from the other forest, such as the FromILM container.
   
   
10. On the Configure Directory Partitions page, click Next.
    
    
11. On the Configure GAL page, click Target, and then select the container in which the contacts from other forests will reside in the target forest.
    
    
12. On the Configure GAL page, click Source, and then select the container in which other forests' objects that are synchronized to the target forest will reside.
    
    
13. Under Exchange configuration, click Edit to specify at least one Simple Mail Transfer Protocol (SMTP) e-mail suffix that is managed in the source forest. Click Next.
    
    
14. On the Select Object Types page, click Next.
    
    
15. On the Select Attributes page, click Next.
    
    
16. On the Configure Connector Filter page, click Next.
    
    
17. On the Configure Join and Projection Rules page, click Next.
    
    
18. On the Configure Attributes Flow page, click Next.
    
    
19. On the Configure Deprovisioning page, click Next.
    
    
20. On the Configure Extensions page, under Configure partition display name(s): section, next to Provision for:, select Exchange 2010. If you select Exchange 2010, you will see the Exchange 2010 RPS URI field. Enter the URI of an Exchange 2010 Client Access server to make sure the Remote Powershell connection is functioning. The Exchange 2010 RPS URI should be in the following format: http://CAS_Server_FQDN/Powershell. Click OK.
    
    

    Note:
    Make sure that the administrator credentials used to connect to the Exchange 2010 forest can also make remote PowerShell connections to that forest. The following figure shows how to select provisioning for Exchange 2010.

    
    
    

This example tests whether you can make a remote PowerShell call to an Exchange 2010 Client Access server to verify that remote PowerShell is functioning correctly. From your ILM 2007 computer, first run this command:

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$rs = new-pssession -conf microsoft.exchange -conn http://CAS_SERVER_NAME/powershell -auth kerberos -cred (get-credential)

Then run this command:

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Invoke-Command $rs {get-recipient -ResultSize 1}