Allow Office 365 not getting desired results...

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L0 Member

Allow Office 365 not getting desired results...

Hei,

We recently moved over to a full O365 solution and I am trying to customise the ruleset to Allow for O365 traffic when all other traffic is blocked.

 

Unfortunately I have hit a wall and cannot seem to get the application to be allowed. I am hoping one of you can point out what I have done wrong and how to correct it.

 

I have used Addresses (with FQDN) and Address Groups where I have defined all the sites that MS states are required. List is here: Office 365 URLs and IPs [Ideally I'd avoid using IPs as these are subject to change. ;-) ]

I then changed the top level policy to allow for the Address Group.

In testing, the client pc is able to start Office and receives the login screen but no login is able to complete. In the Monitor of PAN it details Destination as an IP and Application as "not-applicable"

 

I have also tried using the predefined Application setting (ms-office365), but then on the client pc it does not even resolve to the login screen, just displaying a bland "Unable to connect" pop-up.

 

Thanks in advance for any advice!

 

 

Details:

 

 

L5 Sessionator

Re: Allow Office 365 not getting desired results...

Try one more thing.

 

Allow everything from that test machine and check the logs what all application are required to allow the access to office365 don't use URL filtering first. Then narrow down the security policy

 

Or 

 

Create a deny any any for that IP and check what all applicaiton are blocked and then add them to the allowed rule.

L0 Member

Re: Allow Office 365 not getting desired results...

I have previously tried that and according to the Monitor, the Applications are (ms-office365-base), (web-browsing) and (ssl).

 

Unfortunately, these machines will be used by students in exams, so allowing for internet based traffic would be a bad idea...

 

 

L4 Transporter

Re: Allow Office 365 not getting desired results...

Use URL categories , not FQDN !! they are absolutly not the same thing !!!

L5 Sessionator

Re: Allow Office 365 not getting desired results...

You can get two things from the logs application and IP/fdqn. Now add applicaiton and Destination address in rules in this way it will not allow access to other webistes.

L6 Presenter

Re: Allow Office 365 not getting desired results...

That's what we did...Just dumped the URLs into a custom URL Category.

L1 Bithead

Re: Allow Office 365 not getting desired results...

Still not getting the desired results. :(

 

I've tried the following (and a combination of the following):

 

1) Taken all the URLs and placed them in a new URL category in Objects. Placed this into the main Policy that allows for traffic irrespective of when we have to close access to the internet. Result = access still blocked

 

2) Taken all the individual IPs (599 of them) and placed them into a URL category in Objects. And updated this to the main rule. Result = no access

 

3) In a pique of curiosity - I created the rule to allow for all traffic to "www.*.com" and "*.com". And that didnt work either.

 

4) I have opened up all traffic, took a copy of the destinations that were used, created a rule for them and tried that once the blocks were in place...nope.

 

5) I have gone through the Application filters and updated the main policy to allow for ms-office365 and all other derivaties I could find...but that didnt work either.

 

So - any other tips? I am not a network specialist (clients & scripting are my main) but I cannot understand why it is not working or what is actually been blocked. Unfortunatley too much information is been hidden within the "not-application" description in the Monitor. I can see that the IPs are within the correct subnet range and ports are correct (80 and 443) for Office365 traffic. But why are the applications getting hidden by "not-applicable"?

 

 

 

 

L6 Presenter

Re: Allow Office 365 not getting desired results...

@ABAdmin From TAC, I've been told to not use IP addresses in custom URL categories.  Only use them in address groups.

 

 

L1 Bithead

Re: Allow Office 365 not getting desired results...

Ok will give that a try, thanks for the tip.

L6 Presenter

Re: Allow Office 365 not getting desired results...

Also, last night I was looking through our applications as my company use O365 too.  I'm not sure what part of the service you're using but we allow:

 

ms-office365-base

outlook-web-online
sharepoint-base
sharepoint-online
sharepoint-documents
office-on-demand
skydrive-base
live-mesh-base
SSL
web-browsing

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