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Annoucement: Updated Network Assessment Tool released on 12/8 - added network connectivity checks

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William Looney
Microsoft

Annoucement: Updated Network Assessment Tool released on 12/8 - added network connectivity checks

Hi,

 

I'm happy to announce we have just released an updated Network Assessment Tool for Skype for Business and Microsoft Teams. Download link is: https://www.microsoft.com/en-us/download/details.aspx?id=53885 (version 2017.1.0.51)

 

This new version has the following new features:

  • Perform connectivity test to all of the IP addresses and ports used in Microsoft Teams calls/meetings. This enables you to ensure the firewalls or other network equipment are correctly configured. The tool auto updates the list, so if any addresses or ports changed, the next time the tool is run, the new addresses will be included.
  • Tool is now delivered as an .exe which will install the appropriate runtime dependencies. This should help ensure the tool runs as expected. As part of this, the default path the output files are written to has changed.
  • Updates to support changes in relay management

Refer to the usage.docx file included with the tool for usage/etc.

 

Important: Starting around 12/15, older versions of the tool may stop working and will report an issue with the relay configuration. Please update accordingly.

 

The download site takes a few hours to replicate, so if the link doesn't work today (12/8), pleased try again in a few hours.

 

thanks!

 

/william

11 Replies

Re: Annoucement: Updated Network Assessment Tool released on 12/8 - added network connectivity check

I changed “Relay.IP” to my CCE edge’s in the config file but the tool keeps probing the whole Microsoft’s IP ranges starting from “13.107.64.2”..,..., instead of my CCE’s IP?

Any bugs?

Re: Annoucement: Updated Network Assessment Tool released on 12/8 - added network connectivity check

I can't find the usage.docx ? It only downloaded the .exe ?

Re: Annoucement: Updated Network Assessment Tool released on 12/8 - added network connectivity check

Nice,

 

Connectivity tests to the real services will be really useful in environments where the firewall is locked down. Great that it goes and pulls the current IP's and FQDNs to catch changes over time.

 

I did a quick hands-on blog post here: http://tomtalks.uk/2017/12/updated-free-sfbo-microsoft-teams-network-assessment-tool-added-connectiv...

Re: Annoucement: Updated Network Assessment Tool released on 12/8 - added network connectivity check

 

The EXE installs to a file path that has the usage.docx. check out this blog for a quick overview: http://tomtalks.uk/2017/12/updated-free-sfbo-microsoft-teams-network-assessment-tool-added-connectiv...

Re: Annoucement: Updated Network Assessment Tool released on 12/8 - added network connectivity check

Is this purely for Skype for Business Online? It would be good to make sure the word 'Online' is used as I often find things related to SfB to find out they're Online only.

Re: Annoucement: Updated Network Assessment Tool released on 12/8 - added network connectivity check

Looks great! We were waiting for this :)

One point, do we have option to check what all IPs it tested during connectivity checks? I can only see two lines:

Starting Connectivity checks
Verifications completed successfully

 

 

Re: Annoucement: Updated Network Assessment Tool released on 12/8 - added network connectivity check

 

The IP's are not surfaced in the tool, but I agree to see them would be cool.

 

If you are interested you can trace them with wireshark/NetMon - I took a screenshot in my blog post

Re: Annoucement: Updated Network Assessment Tool released on 12/8 - added network connectivity check

Thanks for response.

I got what I was looking for using following command:

 

NetworkAssessmentTool.exe /Connectivitycheck /verbose

 

I can see list of IPs which were checked during connectivity check with port number.

Re: Annoucement: Updated Network Assessment Tool released on 12/8 - added network connectivity check

Those IP addresses are the Transport Relay anycast ip addresses. I'm trying to understand why you are trying to achieve with change your relay.ip to your CCE Edge. 

Re: Annoucement: Updated Network Assessment Tool released on 12/8 - added network connectivity check

I was helping a customer troubleshoot with this today and comparing the results with running it on my computer. I noticed that not all the IPs listed on the Office 365 IPs and URLs support page appear when testing the tool. In fact, it seemed the customer would get a different set than I would get. Any reason why not all the IPs would be tested?

Re: Annoucement: Updated Network Assessment Tool released on 12/8 - added network connectivity check

The current version of this tool appears to be very broken; after changing the number of iterations to the desired amount (2000 in the below example), only about one quarter of the results are processed with the results analyser - the rest are skipped.

results.PNGLooking at the source results file, it's clear that only tests with around 850 packets sent / received are processed, and that any tests with around 280 packets sent / received are skipped;

results2.PNG

I've tested this thoroughly and can see no logic as to why it utilises 250ish packets sometimes, and 850ish others. This isn't a configurable variable.

 

Any chance of getting this fixed?

 

Kind regards
Ben

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