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Jari_H__309252's avatar
Jari_H__309252
Icon for Nimbostratus rankNimbostratus
Feb 07, 2017

Secure connection via F5 LTM towards Office 365 cloud

We are using Big IP ADC as an HTTPS proxy towards Exchange servers. This is due the fact that our client which needs to fetch calendar information from our customer exchange servers does not support HTTPS protocol. Exchange servers are located in Internet so we need to encrypt the connection

 

This works perfectly well with HTTP VIP and physical exchange server specified behind that VIP with IP address on port 443.

 

However now many of our customers are replacing physical servers with office 365 cloud.

 

Service address to cloud is https://outlook.office365.com/EWS/Exchange.asmx

 

Is there any simple way to build a secure connection to Outlook cloud using F5 LTM?

 

And how should I monitor the connection?

 

We are using F5-BIG-LTM-2000S with software 11.2.1 Build 862.0 Hotfix HF2.

 

Thanks, Jari

 

application delivery
BIG-IP
cloud
exchange
LTM
office 365
outlook
  • youssef1's avatar
    youssef1
    Icon for Cumulonimbus rankCumulonimbus
    Aug 06, 2018

    Hi Jari,

     

    you can do it following multiple way. before deploying your monitor validate first that your infra work correctly.

     

    First of you have to decide how you will force user to cross F5 in order to go outside only for "outlook.office365.com":

     

    • Set F5 as default GW (not the best way) for client...
    • create an VIP with internal IP for outlook.office365.com and reverse proxify with fqdn node...

    So first of can you tell wish alternative is the best for you depending your infra.

     

    Regards