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2007 front end and 2003 backend

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2007 front end and 2003 backend - 21.Dec.2006 8:09:49 PM

ponderw

Posts: 6
Joined: 19.Dec.2006
Status: offline

Okay, so I've got a exch07 box with the HT, mailbox, and CAS roles applied. I've got ISA 2006 publishing the server and I can view OWA for users with mailboxes on the exch07 server. But if I try to access the /exchange virtual folder on the exch07 server and the user's mailbox is on the exch03 back end server it doesnt' come up. I tried testing inside the network and if I try to hit the /exchange folder and login as a user with an account on the exch03 back end, it just redirects my browser to the exch03 web server. Are there any known issues with using exch07 CAS as a front end for exch03 mailbox web users? Any ideas on what to try next? Thanks in advance.

Post #: 1

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RE: 2007 front end and 2003 backend - 21.Dec.2006 8:14:12 PM

John Weber

Posts: 1236
Joined: 20.Apr.2005
From: Portland, Oregon
Status: offline

IIS perms on the 2k3 side.
Something is stopping the CAS from reading the OWA on the 2k3 server

(in reply to ponderw)

Post #: 2

RE: 2007 front end and 2003 backend - 21.Dec.2006 10:15:08 PM

ponderw

Posts: 6
Joined: 19.Dec.2006
Status: offline

I checked the settings on the back end and the folders are set for both integrated and basic authentication. Split DNS is working fine, and I had a working FE/BE setup with 03 prior to this and it was working.
I ran a packet capture on all packets from the 07 box to the 03 box and the odd thing is that no traffic occurs when I try the OWA test. I tested out the capture and it works fine on the smtp mail traffic, etc but when I tested the owa not a single packet went through. It's as if the 07 box doesn't even try and just sends back a HTTP referral/redirect which causes the client to try a direct connect to the 03 box.

(in reply to John Weber)

Post #: 3

RE: 2007 front end and 2003 backend - 3.Jan.2007 9:07:24 AM

acidifix

Posts: 14
Joined: 19.May2006
Status: offline

Hi,

I've got the same problem... when trying to connect to a 2003 mailbox using the OWA 2007 "/exchange" virtual directory, i'm redirected to the internal address of the 2003 box.
So it is not possible to access a 2003 mailbox using OWA 2007 from an external location (via public address, thru an isa box).

Any idea?

Thanks ! And HAPPY NEW YEAR ;)

(in reply to ponderw)

Post #: 4

RE: 2007 front end and 2003 backend - 9.Jan.2007 9:16:37 AM

mimitche

Posts: 4
Joined: 14.Jul.2005
From: US
Status: offline

This appears to be an issue when the CAS role is installed on the same server as the MB role. More discussion is going on at:
http://forums.microsoft.com/TechNet/ShowPost.aspx?PostID=1040981&SiteID=17

(in reply to acidifix)

Post #: 5