Wireless Access

Hello,

Our IT team has started to roll out Skype for Business in our enterprise and I am trying to optimize the Aruba Wi-Fi and get UCC visbility info from the Skype calls. We use Office 365, which, according to the Lync VRD, means we are limited to using the hueristics method ("classify-media" in the ACL).

I have 2 questions.

First question: What do I use as the front end server in my ACL rules?

According to our setup instructions for OS X users, we configure Lync to connect to sipdir.online.lync.com, but I'm not certain this is what I should use as the front end server. Furthermore, different DNS servers seem to report several different IP addresses, but any DNS server I try seems to only respond with a single entry. I found this list from VirusTotal.com:

host 131.253.161.203
host 132.245.209.28
host 132.245.209.21
host 132.245.193.35
host 132.245.193.21
host 134.170.54.26
host 134.170.54.15
host 132.245.113.21
host 132.245.113.25
host 132.245.1.25

Are these the servers that I need to be using for my front end servers netdestination, or should I be adding something else?

Second Question: Do I need to open UDP ports 1025-65535 in the ACL if I'm using the heuristics method in AOS 6.4?

Any insight on how to set this up would be appreciated.

Hi,

Did you get anywhere with this? Any solution?

Dazc,

If you are using Lync and you have an on-premise lync server, you need to use the SDN API to get proper visibility.  If it is Office 365, hueristics should work.  ArubaOS 6.4.4.4 has a new patch to fix an issue with hueristics, so if you have just Office 365, that is what you should be running.

http://www.arubanetworks.com/assets/tg/SG_DeployMicrosoftLync.pdf

Hi,

Thanks to both you and Victor for the prompt feedback.

Our environment was Lync 2013, but has now just been upgraded to Skype for Business. Both solutions are on-premise solutions.

I was aware of the VRD that you shared, but I came across a note in the 6.4.4.0 user guide that states 'If your setup does not have Lync/Skype for Business SDN interface, use Media Classification'.... I've wrongly assumed that I can therefore use the heurisitc capability of the controller to get details relating to Skype4B calls through the controller.

Are there any other means to do this other than the SDN for on-premise? We are faced with a challenge from our provider to get the SDN into their environment, I won't go into too much detail here regarding this as it is not a technical discussion. If however there is no other way to get this data other than the SDN is presents a powerful bargaining tool for me to get this introduced.

Thanks

Thanks Victor, I was aware of this table, it was the comment in the 6.4.4.0 guide that confused me. I also wasn't sure if some things in the table may have changed with the introduction of Skype as the document referred to Lync over Aruba.

I guess we are pretty screwed without the SDN :)