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RPC over site-to-site connection - 6.Jan.2010 5:00:51 PM

sullivac

Posts: 31
Joined: 29.Jun.2005
From: Boston
Status: offline

I have 2 offices connected by a persistent VPN tunnel using ISA 2006 SP1 on each end. The main office has Exchange 2007 (SP2) mail servers and the other office has one Exchange 2003 (SP3) server, all belonging to the same Exchange organization (the branch office is a child domain, in case that matters).

I am trying to migrate the mailboxes from the Exchange 2003 server to the Exchange 2007 mailbox cluster. I need to do this from an Exchange 2007 server in the main office, but I cannot see the mailboxes that exist on the Exchange 2003 server (the ones I need to migrate). When I run the Exchange Best Practices Analyzer, it throws a warning that WMI is not available on the remote Exchange 2003 server. I suspect this is why I can't see the mailboxes that I need to migrate.

I have run into RPC problems between these same offices in the past when dealing with my Certificate servers in the main office and it has driven me crazy. I assume that is what is at play here. I have removed RPC Strict Compliance and beyond that I don't know what else to do. At one point I thought that turning off the RPC filter would help, but that's probably not a logical thing to do. All other protocols work between the 2 offices (SMB, HTTP(S), RDP, Named Pipes, etc.) because I have basically allowed everything.

Does anyone have any suggestions? I realize that I may have to post to an Exchange NG to find out if the mailboxes not showing might have to do with RPC trouble, but I really think that's it.

Thanks.

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RE: RPC over site-to-site connection - 10.Jan.2010 8:43:38 PM

sullivac

Posts: 31
Joined: 29.Jun.2005
From: Boston
Status: offline

Oops. On one of the ISA servers, strict RPC compliance had been re-enforced on the site-to-site rule. Once I unchecked that, all was well with RPC communications.

(in reply to sullivac)

Post #: 2