Forum Discussion
Chris_Schaerli_
Jan 20, 2012Nimbostratus
User authentication issues in Outlook
We currently have an exchange 2010 environment setup with an LTM running 10.2.X code in front. There is a single VIP for all user traffic into the the exchange services. What we are seeing is that when a user takes their laptop over from the wired network to the wireless they are getting a new IP on the network and it appears that they are geting prompted in the Outlook client to re-authenticate. The same behavior happens when users take their laptops home and come in though the corporate VPN.
What we are speculating is that the user persistence, which is set to user IP, is reselecting one of the other CAS servers when they go to wireless or remote. Has anyone come across an enviroment where users could potentially change IP addresses over the course of the day and if so did you see this Outlook authentication issue?
- Chris_Schaerli_NimbostratusI did see the posting from another user with the same issue. The recomendation was to look at the I-rules, but I don't see how the irules in the deployment guide resolve the client changing IP addresses.
- Are you using regular RPC communications there or RPC-over-HTTP? Are these domain-joined clients?
- Chris_Schaerli_NimbostratusMichael,
- Hm..when you say a single VIP, that's a single VIP for HTTP-based services, and then another VIP for RPC, correct? Are you doing SSL offload on the F5? I would recommend trying to remove advanced profiles from the HTTP-based virtual (everything but SSL profile) to see if it addresses the issue - if it does, we'll know better where to troubleshoot. If OneConnect is enabled, I recommend turning it off first and see what happens.
- John_Alam_45640Historic F5 AccountA couple more questions:
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