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Exchange Hybrid Free/Busy - APM 401 error with original iApp

ndaems_145583
Nimbostratus
Nimbostratus

Hi

 

We are trying to deploy Exchange iApp in a Hybrid deployement

 

Everything works well except the Free/Busy feature in O365.

 

After doing some research we found a workaround by adding 2 URL at in the hybrid_bypassed iRule

 

"/ews/exchange.asmx" "/autodiscover/autodiscover.xml"

 

If we don't bypass these 2 URL it's not working and we can see that Kerberos Ticket Failed

 

exch:Common:2e80dc30: User testo365@mydomain.com from RD0004FFD126D7 is authenticated exch:Common:2e80dc30: Received User-Agent header: ExchangeServicesClient%2f15.20.1709.009. exch:Common:2e80dc30: Following rule 'fallback' from item 'SSO Credential Mapping' to ending 'Allow' exch:Common:2e80dc30: Access policy result: LTM+APM_Mode exch:Common:2e80dc30: Received client info - Hostname: Type: unknown Version: 0 Platform: unknown CPU: unknown UI Mode: Full Javascript Support: 0 ActiveX Support: 0 Plugin Support: 0 exch:Common:2e80dc30:Kerberos: can't get S4U2Self ticket for user testo365@mydomain.com - Server not found in Kerberos database (-1765328377) exch:Common:2e80dc30: Kerberos: Failed to get ticket for User: 'testo365@mydomain.com' accessing service: 'HTTP/exchange.MYDOM.ROOT@MYDOM.ROOT' exch:Common:2e80dc30: failure occurred when processing the work item exch:Common:2e80dc30: Session deleted due to admin initiated termination. exch:Common:2e80dc30: Session statistics - bytes in: 3908, bytes out: 817

Few questions:

 

  • Does APM support Alternative UPN as SSO logon ?
  • Is there any risk to bypass additional URL

Thank you

 

Regards

 

Nicolas

 

2 REPLIES 2

Guillaume_B
Nimbostratus
Nimbostratus

Hello,

 

I have the same issue with iApp f5.microsoft_exchange_2016.v1.0.2 on hybrid o365/on-prem configuration. From o365, users can't see free/busy information of on-prem mailboxes. Does anyone have a validated solution?

 

is the workaround " by adding 2 URL at in the hybrid_bypassed iRule "/ews/exchange.asmx" "/autodiscover/autodiscover.xml" " will allow not only o365 but also other users to bypass APM policy ?

 

Thank you

 

Guillaume

 

Nath
Cirrostratus
Cirrostratus

BUMP!

May I know if you are able to resolve this issue? I am facing a similar issue with the free/busy information on our Exchange deployment.