1.       Give up on 2.4 – this is especially true if you’re density isn’t great 
and it’s forcing users to bring-their-own hotspots to cover gaps.

2.       Even as devices like printers, and hotspots transition to 5 Ghz, the 
propagation is so poor that I don’t see them as a problem in the airspace. 
You’d need a lot of them in a small area before all your channel options are 
exhausted.

3.       Make sure your 5 Ghz deployment is dense, mitigating some of the 
reasons why people are using hotspots.

4.       Make guest access/on-boarding simple otherwise users will just default 
to a hotspot out of frustration.

5.       Consider Cisco Prime instead of AMP – Demo it – you may find Rogue 
management to be easier, but likely still futile in our education environment.

6.       Invest in Cisco WAPs that have CleanAir. This goes a long way in 
working around the impact (move channels, identify top badly configured or 
misbehaving devices) and you get excellent data on the impact those rogues are 
having on your RF.

Jeff

From: "[email protected]" <[email protected]> 
on behalf of "Watters, John" <[email protected]>
Reply-To: "[email protected]" 
<[email protected]>
Date: Friday, July 8, 2016 at 6:44 AM
To: "[email protected]" <[email protected]>
Subject: [WIRELESS-LAN] Rogue Containment


I wanted to gather some information on what folks are doing in the area of 
rogue containment. We are a Cisco shop that uses the Aruba/Airwave AMP 
management platform. The native Cisco controllers give a good bit of control 
over handling rogues but it is very time consuming to keep current. The AMP 
integrates reasonably well with this function and automates a lot of the work.

We have tried various combinations of different policies but without any real 
success. On a typical day during the fall & spring semesters, we see in the 
range of 1,500-2,000 rogue APs, many being cell phone hotspots that are 
traveling around campus. Another sizeable group are wireless printers. Efforts 
to educate our users about the problems to everyone caused by these devices has 
been largely unsuccessful. And, no one has the time to try to track down the 
owners of these devices to ask them not to turn these things on (it probably 
wouldn't be successful even if we did find them).

Of course, the problem is not nearly as severe in the 5 GHz space. But, this 
may only be temporary until more devices utilize that frequency range.

What are other schools doing to mitigate rogue wireless signals both from their 
own faculty, staff, and students, but also from the general public who happen 
to wander through campus? And, do you consider it a successful effort?

Thanks for any info you can give me.


John Watters
Network Engineer, Office of Information technology
The University of Alabama<https://www.ua.edu>
A115 Gordon Palmer Hall
Box 870346
Tuscaloosa, AL 35487
Phone 205-348-3992<tel:205-348-3992>
[email protected]<mailto:[email protected]>
[he University of Alabama]<https://www.ua.edu/>

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