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vineyard_166933
Nimbostratus
NimbostratusOpen port range on Exchange Cas array object to enable Outlook Anywhere
Hi
Using Exchange 2010 SP3 and LTM 11.6.0
Outlook Anywhere is currently not working externally. The reason is it tries to proxy connections to the Excahnge CAS array object on port 6001-600...
vineyard_166933Nimbostratus
NimbostratusStrange this, feels like OA should break every time implementing RPC/MAPI from Exchange iApp.
Since LTM rejects all unspecified ports natively, and Outlook Anywhere sends RPC traffic to the RPC/Mapi VIP on 6001-6004 port range.
OA will proxy traffic to DNS name specified in the Exchange RPCCLIENTACCESSSERVER property. And by recommendations the property points to the RPC/Mapi VIPs DNS name.
I recommend opening a case with F5 support, and letting us know the case number. Support will ask you to provide your fiddler captures or tcpdumps that should help us understand what's going on.
You are definitely using Outlook Anywhere. IIRC, the RPC endpoint information is used for internal communications between the CAS and mailbox servers. Are you pointing the CAS array FQDN at the LTM virtual server?