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Random Airgroup devices being able to be seen globally (only on Android)

We have had Airgroup enabled for about a year now. We have device registration set up for all University users to add their devices such as: Chromecast, apple TV's, smart devices, Roku, fire sticks, gaming devices, wireless printers and the list goes on. They can share them with whoever they choose. This has been going well.

Recently we have been getting reports from Android users only that when they are in their Google Home App they can see other devices and actually be able to control them. These devices that randomly show up are not shared with anyone but the registered user.

When we set up the device registration page at the start we changed the default page "if a user leaves the field blank" everyone can see this device, to where if they do check the share box and leave it blank it still only has that user to see the device. We have not changed this since the beginning of set-up.

We do have a TAC case opened for this issue. The only common denominator we have seen is when a user is setting up their google device there is a section that says: "Let others control your cast media" show a notification on all Android devices connected to your Wi-Fi and let them control media casting from (the device name you created).

This is what we got so far:

  • Random popping up on Android devices - hard to capture packets
  • Not all registered Google devices are seen
  • Not all Android devices uses Google Home can see devices
  • We have a Google device set-up in the same manner as the attached screen shot of a device that we have seen on the network and we can not replicate the issue

The photo below is from a Google device that we can see on the network and were able to get into this device.

  • Screenshot_20190311-163339.jpg
7 REPLIES 7

Re: Random Airgroup devices being able to be seen globally (only on Android)

Are you automatically letting all devices connect to your Wi-Fi network? Unregistered devices on our network just get directed to a web portal page untl they are registered. AitGroup devices are in a separate VLan from the 802.1X phones anyway. Non-AirGroup registered devices are in a separate network again.

 

This may be resolved by better network design., IMHO


Bruce Osborne - Wireless Engineer
ACCP, ACMP

All opinions written here are my own and do not necessarily reflect the views and opinions of my employer or Aruba Networks

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New Contributor

Re: Random Airgroup devices being able to be seen globally (only on Android)

Registered devices are on the guest SSID (DMZ Guest VLAN). 802.1 devices Students and Facutly are on the eduroam SSID (enterprise VLAN). 802.1 devices that have been on can NOT use the Guest, they get a blocked page. Guests to the campus are in the Guest SSID (DMZ Guest VLAN).

Everything was working just swell until about a month ago. 

Re: Random Airgroup devices being able to be seen globally (only on Android)

What version of ArubaOS & ClearPass?

 

I doubt CPPM version matters mucg but we have found some AirGroup issues in certain ArubaOS versions


Bruce Osborne - Wireless Engineer
ACCP, ACMP

All opinions written here are my own and do not necessarily reflect the views and opinions of my employer or Aruba Networks

New Contributor

Re: Random Airgroup devices being able to be seen globally (only on Android)

Aruba OS 8.2.2.1

CPPM - 6.7.8.1

Re: Random Airgroup devices being able to be seen globally (only on Android)

I believe there were AirGroup memory leak issues in 8.2.2.1.

We are running 8.2.2.4 which is the latest Conservative Release.

It might be worth upgrading AOS & test again.


Bruce Osborne - Wireless Engineer
ACCP, ACMP

All opinions written here are my own and do not necessarily reflect the views and opinions of my employer or Aruba Networks

New Contributor

Re: Random Airgroup devices being able to be seen globally (only on Android)

Thanks for the input, would a memory cause a service to be impacted? I thought a memory leak caused CPU issues. 

Re: Random Airgroup devices being able to be seen globally (only on Android)

In our case, it would stop AirGroup from working :(


Bruce Osborne - Wireless Engineer
ACCP, ACMP

All opinions written here are my own and do not necessarily reflect the views and opinions of my employer or Aruba Networks

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