RE: Exchange 5.5 MTABindBack over RPC failures
- From: "Bunting, Jeff" <BUNTING@xxxxxxxxxxxx>
- To: "'[ISAserver.org Discussion List]'" <isalist@xxxxxxxxxxxxx>
- Date: Mon, 16 Jan 2006 12:02:08 -0500
And to follow up, still have not changed anything and the messages have now
finally transferred after repeated failures.
Could something be happening at the packet level to cause ISA not to
recognize the traffic properly?
Jeff
-----Original Message-----
From: Bunting, Jeff
Sent: Monday, January 16, 2006 11:06 AM
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: Exchange 5.5 MTABindBack over RPC failures
http://www.ISAserver.org
I only have one ISA server which is local, if that's what you meant about
two rules. The remote offices are connected via IPSEC to the router here.
-----Original Message-----
From: Jim Harrison [mailto:Jim@xxxxxxxxxxxx]
Sent: Monday, January 16, 2006 10:33 AM
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: Exchange 5.5 MTABindBack over RPC failures
http://www.ISAserver.org
You mean two rules, right?
:-)
What ISA SP/patch level is your ISA running?
--------------------------------------------
Jim Harrison
MCP(NT4, W2K), A+, Network+, PCG
http://isaserver.org/Jim_Harrison/
http://isatools.org
Read the help / books / articles!
--------------------------------------------
-----Original Message-----
From: Bunting, Jeff [mailto:BUNTING@xxxxxxxxxxxx]
Sent: Monday, January 16, 2006 7:30 AM
To: [ISAserver.org Discussion List]
Subject: [isalist] Exchange 5.5 MTABindBack over RPC failures
http://www.ISAserver.org
I'm having some problems with message transfer from my Exchange 2003 server
(ISA 2004 secureNAT client) to Exchange 5.5 server in branch offices.
I'm getting MTABindBack errors to one server, and looking through the ISA
logs, it is showing the bindback as "unidentified IP traffic". The intial
connection is shown as RPC.
I have a second server that I successfully sent mail to this morning (at the
same time the first one wasn't working properly) which is now failing with
the same problem. I have not changed the ISA configuration today. I swear.
The only thing I did today was to restart the MTA services on Exchange to
see if that was a problem.
the ISA rule I have is to allow Exchange RPC Server, RPC (alll interfaces),
RPC Server(allinterfaces) from Internal to Internal.
It just looks to me that ISA isn't seeing the bindback as RPC traffic and
thus denying it. Do I need to modify this some way?
Jeff
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