Wireless Scanning Apps

[Hales, David]

I was wondering if anyone had any free wireless scanning apps for Android that 
they currently like?  Just something free and simple you can use to check 
signal strength, SSIDs and BSSIDs around you when out in the field?  I always 
end up with a different one each time I replace my phone and was about to poke 
around the Play store again.

David Hales
Network Systems Administrator

Information Technology Services
Tennessee Tech University
1010 N. Peachtree Av., CLEM117
Cookeville, TN 38505
P: 931-372-3983
E: dha...@tntech.edu


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RE: Multi sim 4G routers

[Hales, David]

While I didn't end up using the multi-sim support, I've used these cellular 
routers for remote locations in the past.  They're pretty good products, 
support dual SIM, battery backup or PoE, and external antennae.

https://www.digi.com/products/networking/cellular-routers/enterprise/digi-6310-dx

David Hales
Network Systems Administrator

Information Technology Services
Tennessee Tech University
1010 N. Peachtree Av., CLEM117
Cookeville, TN 38505
P: 931-372-3983
E: dha...@tntech.edu

From: The EDUCAUSE Wireless Issues Community Group Listserv 
 On Behalf Of Luke Whitworth
Sent: Wednesday, July 21, 2021 8:54 AM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: [WIRELESS-LAN] Multi sim 4G routers


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Hi all,

We've got a requirement to support some learning spaces in remote locations.  
We use Aruba wireless so if we can have some remote APs there, we just need to 
work out how to backhaul them.  In the past I've resorted to a Raspberry Pi and 
a 4G USB dongle (as although some Aruba access points have USB modem support it 
was a nightmare that I gave up on).  However, for this people are wanting more 
bandwidth and resiliency, and a plug in and go solution.  I've found 
https://teltonika-networks.com/product/rutx09/,
 which seemingly ticks lots of boxes but I was wondering if anyone has any 
experience with products / vendors in this area that they'd be happy to share?  
Ideally we'd like multiple SIMs that we can load balance over, so we just plug 
in a few APs and live in hope that all users don't associate with just one AP!

Cheers,

Luke

Luke Whitworth
Network Specialist
Information Services
Building 63 (IT) G46, Cranfield University, Cranfield, Bedfordshire MK43 0AL
E: luke.whitwo...@cranfield.ac.uk
T: +44 (0) 1234 75 4007
W: 
www.cranfield.ac.uk

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Any opinions expressed are not necessarily the corporate view of Cranfield 
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RE: [WIRELESS-LAN] Lead time for Wi-Fi gear?

[Hales, David]

We ordered some Extreme/Aerohive gear about 6 weeks ago and got half 
immediately and the other half showed up last week.

David Hales
Network Systems Administrator

Information Technology Services
Tennessee Tech University
1010 N. Peachtree Av., CLEM117
Cookeville, TN 38505
P: 931-372-3983
E: dha...@tntech.edu

From: The EDUCAUSE Wireless Issues Community Group Listserv 
 On Behalf Of Mike Atkins
Sent: Thursday, May 20, 2021 9:24 AM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: [WIRELESS-LAN] Lead time for Wi-Fi gear?


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What's the word on lead time for your Wi-Fi gear?  We are primarily Cisco but 
have some Aruba and see ship times six months out.  Is that what everyone else 
is seeing?  I know some Meraki gear can be shipped within a week or so.  I just 
wanted to get a feel from the group as to what they hear on the street.








--




Mike Atkins
Infrastructure Architect
Office of Information Technology
University of Notre Dame
Phone: 574-631-7210



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RE: [WIRELESS-LAN] Multiple Vulnerabilities in Frame Aggregation and Fragmentation Implementations of 802.11

[Hales, David]

Extreme's response page:

https://extremeportal.force.com/ExtrArticleDetail?an=95779


David Hales
Network Systems Administrator

Information Technology Services
Tennessee Tech University
1010 N. Peachtree Av., CLEM117
Cookeville, TN 38505
P: 931-372-3983
E: dha...@tntech.edu

From: The EDUCAUSE Wireless Issues Community Group Listserv 
 On Behalf Of Tariq Adnan
Sent: Tuesday, May 11, 2021 8:18 PM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: [WIRELESS-LAN] Multiple Vulnerabilities in Frame Aggregation and 
Fragmentation Implementations of 802.11


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FYI

https://therecord.media/wifi-devices-going-back-to-1997-vulnerable-to-new-frag-attacks/

Cisco's response:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu


-
Cheers,

Kind regards,
Tariq


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RE: A quick roundup of clients per standard in universities

[Hales, David]

I filled out the survey and was hoping that you would share the results here 
once it is complete.

David Hales
Network Systems Administrator

Information Technology Services
Tennessee Tech University
1010 N. Peachtree Av., CLEM117
Cookeville, TN 38505
P: 931-372-3983
E: dha...@tntech.edu

From: The EDUCAUSE Wireless Issues Community Group Listserv 
 On Behalf Of Manon Lessard
Sent: Monday, March 8, 2021 8:59 AM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: [WIRELESS-LAN] A quick roundup of clients per standard in universities


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Good morning everyone

I am working on a paper for a uni class I am currently taking, and I am 
wondering about the client mix in other universities.
Of course, some of us have few students on campus because of Covid, but 
nevertheless I would appreciate your input as to what the client mix looks like 
in your institution. If you do not mind helping me gathering data, please fill 
my little survey 
here

Thank you for your time and contribution!

Manon Lessard
Chargée de programmation et d'analyse
CCNP, CWNE #275
Direction des technologies de l'information
Pavillon Louis-Jacques-Casault
1055, avenue du Séminaire
Bureau 0403
Université Laval, Québec (Québec)
G1V 0A6, Canada
418 656-2131, poste 412853
Télécopieur : 418 656-7305
manon.less...@dti.ulaval.ca
www.dti.ulaval.ca
Avis relatif à la confidentialité | Notice of 
Confidentiality



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RE: [WIRELESS-LAN] Macbook zoom wireless dropout issues

[Hales, David]

Are the blocks that you’re seeing coming from one of the Zoom subnets in the 
listing?  
https://support.zoom.us/hc/en-us/articles/201362683-Network-firewall-or-proxy-server-settings-for-Zoom
 speicifies that all the subnets should be allowed both inbound and outbound.  
It might not all be bidirectional from the initially contacted outbound 
destination.  Some responses might come from other servers in the Zoom subnets 
depending on routing and what servers participants connect to possibly.  That 
might explain the blocks you’re seeing.  I set up my firewall with rules to 
allow inbound and outbound with those outside subnets and the services they 
listed just in case some of the connections aren’t stateful since it might be 
doing some sort of multi-peering model.

David Hales
Network Systems Administrator

Information Technology Services
Tennessee Tech University
1010 N. Peachtree Av., CLEM117
Cookeville, TN 38505
P: 931-372-3983
E: dha...@tntech.edu<mailto:dha...@tntech.edu>

From: The EDUCAUSE Wireless Issues Community Group Listserv 
 On Behalf Of John Rodkey
Sent: Friday, February 12, 2021 4:21 PM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] Macbook zoom wireless dropout issues


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These are all outbound 8801 connections?  We don't block outbound, but we do 
block inbound, and our firewall is blocking a number on port 8801.
Zoom's Firewall article 
https://support.zoom.us/hc/en-us/articles/201362683<https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fsupport.zoom.us%2Fhc%2Fen-us%2Farticles%2F201362683=04%7C01%7Cdhales%40TNTECH.EDU%7Ca1ecda501cba4786e73f08d8cfa486e5%7C66fecaf83dc04d2cb8b8eff0ddea46f0%7C1%7C0%7C637487652852814862%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000=34FdYZVIioEYWareSQ4%2F19R66Bm2CT9ChuKDL7K00H0%3D=0>
 only shows outbound as being required, but the inbound traffic is puzzling.

John Rodkey
Director of Servers and Networks
Westmont College


Verification: Unsure if this is a legitimate email to an email list? Make sure 
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"God-fearing faith... is neither brash nor foolhardy and does not tempt God." - 
Martin Luther


On Fri, Feb 12, 2021 at 8:54 AM Hales, David 
mailto:dha...@tntech.edu>> wrote:
Zoom starts out trying UDP/8801, then if that fails goes to TCP/8801.  Then if 
that fails it runs SSL on TCP/443.  Then if that fails the user has to use the 
web client over http/https.  You can find the networks needed in an 
automatically updated text list format for linking to dynamic firewall rules at 
the follow URLs:

https://assets.zoom.us/docs/ipranges/ZoomMeetings.txt<https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fassets.zoom.us%2Fdocs%2Fipranges%2FZoomMeetings.txt=04%7C01%7Cdhales%40TNTECH.EDU%7Ca1ecda501cba4786e73f08d8cfa486e5%7C66fecaf83dc04d2cb8b8eff0ddea46f0%7C1%7C0%7C637487652852824862%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000=hcxNiIn7m7zw%2FuXg8ArW%2BnjwC1tzIYVkZc%2FVEIEEc4Y%3D=0>
https://assets.zoom.us/docs/ipranges/Zoom.txt<https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fassets.zoom.us%2Fdocs%2Fipranges%2FZoom.txt=04%7C01%7Cdhales%40TNTECH.EDU%7Ca1ecda501cba4786e73f08d8cfa486e5%7C66fecaf83dc04d2cb8b8eff0ddea46f0%7C1%7C0%7C637487652852824862%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000=XZegHQF7qWMlDcNdUKCThT0XOmGwoJ%2Bh%2FiM6wOR6L0E%3D=0>

That being said, this fallback process is at call setup.  Once the call is up 
and running, if you’re seeing client association issues, then the Zoom 
disconnects or hangs that follow those are just symptoms of whatever is causing 
the wireless issues between the client and the AP.

David Hales
Network Systems Administrator

Information Technology Services
Tennessee Tech University
1010 N. Peachtree Av., CLEM117
Cookeville, TN 38505
P: 931-372-3983
E: dha...@tntech.edu<mailto:dha...@tntech.edu>

From: The EDUCAUSE Wireless Issues Community Group Listserv 
mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>> 
On Behalf Of Sullivan, Don
Sent: Friday, February 12, 2021 10:01 AM
To: 
WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>
Subject: Re: [WIRELESS-LAN] Macbook zoom wireless dropout issues


External Email Wa

RE: [WIRELESS-LAN] Macbook zoom wireless dropout issues

[Hales, David]

Zoom starts out trying UDP/8801, then if that fails goes to TCP/8801.  Then if 
that fails it runs SSL on TCP/443.  Then if that fails the user has to use the 
web client over http/https.  You can find the networks needed in an 
automatically updated text list format for linking to dynamic firewall rules at 
the follow URLs:

https://assets.zoom.us/docs/ipranges/ZoomMeetings.txt
https://assets.zoom.us/docs/ipranges/Zoom.txt

That being said, this fallback process is at call setup.  Once the call is up 
and running, if you’re seeing client association issues, then the Zoom 
disconnects or hangs that follow those are just symptoms of whatever is causing 
the wireless issues between the client and the AP.

David Hales
Network Systems Administrator

Information Technology Services
Tennessee Tech University
1010 N. Peachtree Av., CLEM117
Cookeville, TN 38505
P: 931-372-3983
E: dha...@tntech.edu<mailto:dha...@tntech.edu>

From: The EDUCAUSE Wireless Issues Community Group Listserv 
 On Behalf Of Sullivan, Don
Sent: Friday, February 12, 2021 10:01 AM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] Macbook zoom wireless dropout issues


External Email Warning

This email originated from outside the university. Please use caution when 
opening attachments, clicking links, or responding to requests.


Ok, I’m going to throw something out there that may sound stupid, but I am ok 
with appearing stupid. When a client initiates a zoom call is that done via UDP 
or TCP? If it is done via UDP, can the session fail over to using TCP SSL 
connectivity in the middle of the call? Can that in turn create a situation 
where the wireless session disassociates and then tries to reassociate? I ask 
these questions because when I have been looking at drops during a Zoom call I 
have been seeing the wireless client disassociating and re associating at the 
same time the Zoom dashboard says the client lost their network connection. 
Those of you using Voyance (ENI) will see it in the time line as a “bad roam”. 
I am wondering if I am seeing a wireless network issue or is it a client and/or 
Zoom issue. I have seen it on both Windows and Macs. Just wondering if this is 
a one off or consistent with what others are seeing.

Don Sullivan
Network Administrator
Technology Services

205-726-2111 | office
dsulli...@samford.edu<mailto:dsulli...@samford.edu>
LinkedIn<https://nam11.safelinks.protection.outlook.com/?url=http%3A%2F%2Flinkedin.com%2Fin%2Fdonaldasullivan=04%7C01%7Cdhales%40TNTECH.EDU%7C139667bc5ebe4b9ef07208d8cf6f71f3%7C66fecaf83dc04d2cb8b8eff0ddea46f0%7C1%7C0%7C637487424856917823%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000=l9y2yWdXgafEV3Mv5agMLCQW4b9EhWXX64vgXesEzzY%3D=0>
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From: The EDUCAUSE Wireless Issues Community Group Listserv 
mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>> 
On Behalf Of Hales, David
Sent: Friday, February 12, 2021 09:21
To: 
WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>
Subject: [EXTERNAL]Re: [WIRELESS-LAN] Macbook zoom wireless dropout issues

I was just following this thread along until a ticket dropped in my lap this 
morning with a large Zoom session that apparently was cratering all over the 
place.  After reviewing the connection report from Zoom for the session in 
question, there’s a pretty strong correlation between clients connecting over 
SSL having very absurdly high latency and jitter as opposed to clients 
connecting via UDP.  There were a handful of folks in the session off campus 
and those running SSL had the same problems.

Of course, there were far fewer off campus folks running SSL type connections 
since most home routers let just about anything go outbound.  If this ends up 
being a cause of major issues, then folks switching to hotspots will indeed 
feel like that solved their problems in many cases, causing them to further 
curse the “crappy campus network”. ☹

Zoom uses a fallback to TCP/443 SSL connectivity when it 

RE: [WIRELESS-LAN] Macbook zoom wireless dropout issues

[Hales, David]

I was just following this thread along until a ticket dropped in my lap this 
morning with a large Zoom session that apparently was cratering all over the 
place.  After reviewing the connection report from Zoom for the session in 
question, there’s a pretty strong correlation between clients connecting over 
SSL having very absurdly high latency and jitter as opposed to clients 
connecting via UDP.  There were a handful of folks in the session off campus 
and those running SSL had the same problems.

Of course, there were far fewer off campus folks running SSL type connections 
since most home routers let just about anything go outbound.  If this ends up 
being a cause of major issues, then folks switching to hotspots will indeed 
feel like that solved their problems in many cases, causing them to further 
curse the “crappy campus network”. ☹

Zoom uses a fallback to TCP/443 SSL connectivity when it can’t get through on 
its default UDP port (8801) or TCP port (8801).  I’m starting to suspect that 
the SSL fallback might have some significant issues and am going to investigate 
allowing the UDP connections through our firewalls for Zoom sessions.  I’d be 
curious to see if any of the other folks getting big spikes of Zoom complaints 
could provide further corroboration for this theory?

David Hales
Network Systems Administrator

Information Technology Services
Tennessee Tech University
1010 N. Peachtree Av., CLEM117
Cookeville, TN 38505
P: 931-372-3983
E: dha...@tntech.edu

From: The EDUCAUSE Wireless Issues Community Group Listserv 
 On Behalf Of Lee H Badman
Sent: Friday, February 12, 2021 9:00 AM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] Macbook zoom wireless dropout issues


External Email Warning

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The by-product? “The campus network sucks. I’m using my hotspot…” let the fun 
begin.

Lee Badman | Network Architect (CWNE#200)
Information Technology Services
(NDD Group)
206 Machinery Hall
120 Smith Drive
Syracuse, New York 13244
t 315.443.3003   e lhbad...@syr.edu w its.syr.edu
Campus Wireless Policy: 
https://answers.syr.edu/display/network/Wireless+Network+and+Systems
SYRACUSE UNIVERSITY
syr.edu

From: The EDUCAUSE Wireless Issues Community Group Listserv 
mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>> 
On Behalf Of Ian Lyons
Sent: Friday, February 12, 2021 9:54 AM
To: 
WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] Macbook zoom wireless dropout issues

We had a huge upswell of Mac users not being able to connect and the newest OS 
was at fault. Older macs further away...no issues. Mac's with new OS right 
under an AP... couldnt connect reliably, huge CPU spikes and or crappy wifi.

Ahh, I love Apple.

But yeah, in this instance, dont discount the OS.

Ian

Cheers
Ian J Lyons
Network Architect - Rollins College
401.413.1661 Cell
407.628.6396 Desk




From: The EDUCAUSE Wireless Issues Community Group Listserv 
mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>> 
on behalf of Julian Y Koh 
mailto:kohs...@northwestern.edu>>
Sent: Friday, February 12, 2021 9:35
To: 
WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU 
mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>>
Subject: Re: [WIRELESS-LAN] Macbook zoom wireless dropout issues


* External Email *



On Feb 12, 2021, at 07:56, Sidharth Nandury 
mailto:nandu...@denison.edu>> wrote:

We are an Aruba shop at Denison University and have received reports of issues 
on Zoom and Google Meet as well mostly on Mac OS. Looking into the Zoom 
dashboard statistics of some of these calls we are seeing the "Max Loss" 
percentage go up to 99% frequently and back down to 2-6 % on wireless when 
there are no issues. We can generally co-relate this to higher ping responses. 
I would also love to what other Universities are doing to look at this.

This thread reminded me of a recent on on the NANOG mailing list about Macs and 
wireless issues.  Go to 

RE: [EXTERNAL] [WIRELESS-LAN] protecting AP's in a gym?

[Hales, David]

We installed several in the Oberon 1020-00 boxes.  They look nice and are 
pretty roomy inside.

David Hales
Network Systems Administrator

Information Technology Services
Tennessee Tech University
1010 N. Peachtree Av., CLEM117
Cookeville, TN 38505
P: 931-372-3983
E: dha...@tntech.edu

From: The EDUCAUSE Wireless Issues Community Group Listserv 
 On Behalf Of Shoebottom, Bryan
Sent: Friday, January 29, 2021 6:13 AM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] [EXTERNAL] [WIRELESS-LAN] protecting AP's in a gym?


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We are about to install APs and antennas within an Oberon enclosure, 
specifically:
https://oberoninc.com/products/1021-00/

They're NEMA4 rated and we're hoping they'll handle any abuse.

--
Regards,

Bryan Shoebottom
Network & Systems Specialist

Network Services & Computer Operations
1001 Fanshawe College Blvd. London, ON N5Y 5R6
T 519.452.4430 x4904 | F 519.453.3231
bshoebot...@fanshawec.ca

[cid:582C4514-D41F-48FA-94E1-89D38DB527CB]

From: Enfield, Chuck mailto:cae...@psu.edu>>
Sent: January 28, 2021 12:17 PM
Subject: Re: [EXTERNAL] [WIRELESS-LAN] protecting AP's in a gym?

We use an appropriately sized polyethylene or ABS NEMA box.  No need for fiber 
reinforcement.  I don't have sensitive enough equipment to detect any RF 
performance difference (signal strength, data rate, retry rate, etc.) between 
cover on vs. off tests.  Some of them have been painted with latex wall paint 
and that hasn't hurt performance either.  We've been using them sealed for 
years and haven't had a problem with AP reliability or service life due to 
heat, but it's also cheap and easy to drill a few ½" vent holes in the top and 
bottom if heat is a concern. (I recommend venting if it's in an unconditioned 
space.)  We've purchased them a little larger than required and haven't had to 
replace them when we life-cycled APs, but the switch to AX models is probably 
going to finally require new boxes for us.  They're cheap, flexible, and 
available off-the-shelf.

That said, I have nothing bad to say about the Oberon products others have 
suggested.

Chuck Enfield
Manager, Wireless & Cellular
Penn State IT
814-863-8715

From: The EDUCAUSE Wireless Issues Community Group Listserv 
mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>> 
On Behalf Of Mallon, Jason
Sent: Thursday, January 28, 2021 11:26 AM
To: 
WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] [EXTERNAL] [WIRELESS-LAN] protecting AP's in a gym?

Hey Tim,
We are using something similar to what is in the link, and from what I can tell 
it does a fairly good job.  We have an AP right behind one of the goals, so I 
know it has been hit a few times.

https://oberoninc.com/products/1026-20168-c/

Thanks,
Jason Mallon | Network Engineer III
[/var/folders/h2/r448cc4j4_v70yns10brx6r0gq/T/com.microsoft.Outlook/Content.MSO/90F25235.tmp]
OIT
The University of Alabama
jemal...@ua.edu
[/var/folders/h2/r448cc4j4_v70yns10brx6r0gq/T/com.microsoft.Outlook/Content.MSO/8434B70B.tmp]

From: The EDUCAUSE Wireless Issues Community Group Listserv 
mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>> 
on behalf of Tim Tyler mailto:ty...@beloit.edu>>
Date: Thursday, January 28, 2021 at 10:21 AM
To: 
WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU 
mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>>
Subject: [EXTERNAL] [WIRELESS-LAN] protecting AP's in a gym?
Wireless managers,
  We have some Aruba 325 AP's in a gym and I am wondering what some of you use 
to protect them from physical damage such as a softball 

RE: Request for outdoor wifi access point mounting example photos

[Hales, David]

We had a really good thread about this a while back, The subject line was 
"Aruba AP-3XX mounting question" and it was last July in case anyone wants to 
look in the old digests.  I'm forwarding you a copy of the thread directly.

David Hales
Network Systems Administrator
Information Technology Services
1010 N. Peachtree
Clement Hall 117
Cookeville, TN 38505
P 931-372-3983
F 931-372-6130
E dha...@tntech.edu
www.tntech.edu/its
[Tennessee Tech Logo]

From: The EDUCAUSE Wireless Issues Community Group Listserv 
 On Behalf Of Smith, Nayef
Sent: Monday, July 20, 2020 4:22 PM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: [WIRELESS-LAN] Request for outdoor wifi access point mounting example 
photos


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Hello All,

We are in the process of designing an outdoor wifi deployment utilizing APs 
mounted on building exteriors.  We want to minimize their visual impact where 
possible.  Any photos or lessons learned you can share would be appreciated.  
We're particularly interested to see what others have done to camouflage or 
creatively conceal the mountings to reduce visibility.

Thanks in advance,
Nayef

Nayef Z. Smith | Emory LITS Network Services | Suite 1700 | 1762 Clifton Road | 
Atlanta GA 30322 | Voice: 404-727-6019 | 
nayef.z.sm...@emory.edu



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RE: [WIRELESS-LAN] Who has transitioned away from Aruba, and why?

[Hales, David]

We've been an Aerohive shop for at least 10 years and have had a pretty good 
experience overall.  For scale we have about 2,000 WAPS across campus and we 
use an on-premise HiveManager box for the management plane functionality.  We 
had a similar issue several years back when they introduced the AP370/390 Wave 
1 AC gear.  It seemed to be chipset/driver based problems.  We weren't happy 
with the problem, but were pleased with the way the company handled it.  We got 
C-suite escalation pretty early on and they quickly made arrangements to take 
back every one of those units and replace them with a different product line.

Coincidentally, we are also an Extreme shop for wired gear.  We were waiting to 
see how the merger shook out before making a strategic decision going forward, 
but it looks like we'll be sticking with both product lines going forward.

David Hales
Network Systems Administrator
Information Technology Services
1010 N. Peachtree
Clement Hall 117
Cookeville, TN 38505
P 931-372-3983
F 931-372-6130
E dha...@tntech.edu
www.tntech.edu/its
[Tennessee Tech Logo]

From: The EDUCAUSE Wireless Issues Community Group Listserv 
 On Behalf Of Stephen Belcher
Sent: Thursday, January 9, 2020 10:49 AM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] Who has transitioned away from Aruba, and why?


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Cisco shop here with around 5300 APs. We are looking to get away from Cisco 
because of bugs and poor support. I would be happy to go in more detail 
off-line.

Our fist choice is Mist. They are doing some amazing things but the price is a 
premium and we may not be able to afford them.

Our second choice was Extreme (we have one small site with Extreme wireless) 
but, we just found out yesterday that with the acquisition of AeroHive, all new 
wireless will be based on their AeroHive HiveManager cloud platform rebranded 
to ExtremeCloud IQ. We are doing a deeper technical dive for that platform to 
understand the new offering. That being said, does anyone use AeroHive in a 
large deployment?

Maybe it's just a problem with Wi-Fi in general...

Steve

From: The EDUCAUSE Wireless Issues Community Group Listserv 
mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>> 
On Behalf Of Michael Davis
Sent: Thursday, January 9, 2020 11:27 AM
To: 
WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] Who has transitioned away from Aruba, and why?

While not an answer to your request, we are also starting to look into this 
possibility for
the same reasons.  While we only have about 500 515s deployed with WiFi6 
extensions
disabled, we haven't seen tickets to this extent but we also don't have any 
greenfield
515-only deployments.

We will be looking at Mist, being a heavy Juniper shop, but also Cisco as some 
existing
collaborations may lead to cost effective transitions..


On 1/9/20 11:15 AM, Turner, Ryan H wrote:
All:

We've been an Aruba shop for a very long time and have around 10,000 access 
points.  While every relationship with vendors have their ups and downs, my 
frustration with the Aruba is finally peaking to the point that I am 
considering making the enormous move to choose a different vendor.  The biggest 
reason is with the 8.X code train, and bugs that we just don't consider 
appropriate to use in production.  It has been one thing after the other, and 
my extremely talented and qualified Network Architect (Keith Miller) might as 
well be on the Aruba payroll as much work as he has been doing for them to 
solve bugs.  Just when we think we have one fixed, another one crops up.

The big one as of late is with 515s running 8.5 code train.  We have them 
deployed in one of our IT buildings.  Periodically, people that are connected 
to these APs in the 5G band will stop working.  To the user, they are browsing 
a site, then it becomes unresponsive.  If they are on their phone, they will 
disconnect from wifi and everything works fine on cell.  Nothing makes an 
802.11 network look worse than switching to cell and seeing a problem resolve.  
Normally, if the users disconnect then reconnect, their problems will go ahead 
(but I think they end up connecting in the 2.4G band).   We've been working on 
this problem with them for months.  It always seems as though we have to prove 
there is a real issue.  I'm fed up with it.  We are a sophisticated shop.  If 
we have a problem, 9 times out of 10 when we bring it to the vendor, it is a 
real problem.  I'm extra frustrated that due to issues we've seen in ResNet on 
the 8.3X train that we don't want to abandon our 6 train on main campus.  To 
Aruba's credit, we purchased around 1,000 515s last year (I think around 
February).  When they 

RE: rules for mis-behaving wireless clients

[Hales, David]

Our wireless authentication system came with a default that would lock out 
clients that failed 10 authentication attempts in a row for an hour.  It caused 
some pretty heavy helpdesk hate.  If the lockout doesn't come with some way of 
notifying the user that they're locked out and how long the lockout lasts, I'd 
recommend keeping the lockout time fairly short.  We moved ours to 10 minutes 
and it doesn't cause very much trouble for us now.  Making sure the 1st line of 
support (helpdesk) knows how it works is critical to easing aggravation levels 
from customers.

David Hales
Network Systems Administrator
Information Technology Services
1010 N. Peachtree
Clement Hall 117
Cookeville, TN 38505
P 931-372-3983
F 931-372-6130
E dha...@tntech.edu
www.tntech.edu/its
[Tennessee Tech Logo]
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From: The EDUCAUSE Wireless Issues Community Group Listserv 
 On Behalf Of Joseph M. Karam
Sent: Wednesday, November 20, 2019 11:17 AM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: [WIRELESS-LAN] rules for mis-behaving wireless clients


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Hello Everyone,

Are there any general recommendations/best practices on rules for misconfigured 
wireless devices for connecting to your wireless infrastructure?  For example, 
we have many mis-configured eduroam clients that are just continually sending 
authentication requests.We would like to define a rule in our wireless 
infrastructure that says something like, "if the device failed authentication 
20 times in 1 minute, do not allow it to authenticate again for 10 minutes".
 Has anyone had good or bad experiences with defining these types of policies?

Thank you,

Joe



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RE: Theater wifi - to have or not to have

[Hales, David]

We installed wireless in our big auditorium on campus several years ago because 
it gets used for the occasional event where wireless is useful.  We have 
recruiting and large scale campus visit events in there and sometimes have 
participants fill out online forms and applications during sessions in there.

While it might not seem that it would be used in there, someone will want it 
someday.  If you’re building and have the opportunity to put it in, do it.

David Hales
Network Systems Administrator
Information Technology Services
1010 N. Peachtree
Clement Hall 117
Cookeville, TN 38505
P 931-372-3983
F 931-372-6130
E dha...@tntech.edu
www.tntech.edu/its
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From: The EDUCAUSE Wireless Issues Community Group Listserv 
 On Behalf Of Bull, Mary
Sent: Tuesday, October 22, 2019 11:34 AM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: [WIRELESS-LAN] Theater wifi - to have or not to have


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Hello all,

I’m wondering if anyone here has dealt with a decision on wireless in the 
theaters, concert halls, or recital halls on their campus. We have a new arts 
complex coming on line in the next two years and there’s no clear direction 
from faculty on whether wireless for the audience is desirable. The previous 
main theater, and other currently used theaters on campus, did/do not have full 
connectivity for the audience (just a few aps tacked on the walls that were 
useless when the room was full). Facilities planning is favorable toward 
building it in, so I’d prefer that too, especially since it would be much 
harder or impossible to install if the faculty changes their mind in a few 
years once the building is complete. However, I’m not sure whether there is 
really an expectation from the audience that they should have wifi when they 
attend a show or concert.

Has anyone dealt with this on their campus? What influenced your choice?

Mary Bull
William and Mary
757-221-2491
mb...@wm.edu

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Wall plate APs and shared wall plates?

[Hales, David]

We're looking at retrofitting a dorm for per room WAPs using some wall plate 
installed APs.  The issue we're looking at is that the current drop in each 
room has a network port and a cable TV port in a shared faceplate.  Does anyone 
have a favorite workaround or product to get the F connector out around the 
wall plate WAP?  Possibly a box extension with side ports or something along 
those lines?

David Hales
Network Systems Administrator
Information Technology Services
1010 N. Peachtree
Clement Hall 117
Cookeville, TN 38505
P 931-372-3983
F 931-372-6130
E dha...@tntech.edu
www.tntech.edu/its
[Tennessee Tech Logo]
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RE: Wireless USB adapters

[Hales, David]

We've had a few cases where we've needed adapters for devices along these 
lines.  My recommendation is to work with the manufacturer of the system you're 
trying to support.  Depending on the hardware/firmware on the system, support 
for wireless adapters is likely limited to a small set of makes and models.  If 
the device has a wired Ethernet interface, it may be easier to install a 
wireless bridge adapter onto the existing Ethernet, avoiding the need to match 
up a USB adapter with whatever limited USB support the freezers have.

Back in the N days, I used to like using the Netgear WNCE2001.  It was very 
small, and they could be powered through a USB port or AC adapter as needed.  
I'd really love to find something similar to that with AC support that I don't 
have to scrounge around on eBay to purchase.  Ideally something cheap enough 
that the occasional residential student with a wired only device could purchase 
it to get their device online in our wireless only residence halls.

David Hales
Network Systems Administrator
Information Technology Services
1010 N. Peachtree
Clement Hall 117
Cookeville, TN 38505
P 931-372-3983
F 931-372-6130
E dha...@tntech.edu
www.tntech.edu/its
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From: The EDUCAUSE Wireless Issues Constituent Group Listserv 
[mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Yahya M. Jaber
Sent: Friday, March 30, 2018 6:37 AM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: [WIRELESS-LAN] Wireless USB adapters

Hi All,

Anyone has experience in an enterprise USB WiFi adapters? In terms of support, 
robustness, compliance...

I am looking for something to connect couple of freezers wirelessly.

Thanks.

Yahya Jaber.
Sr. Wireless Engineer
IT Network & Communications - Engineering
Building 14, Level 3, Rm 308-WS07
KAUST 23955-6900 Thuwal, KSA

Email yahya.ja...@kaust.edu.sa
Office +966 (0) 12 8081237
Mobile +966 (0) 558697555
On Call Rotation Mobile: +966 54 470 1177



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RE: [WIRELESS-LAN] gaming on wireless

[Hales, David]

Another good troubleshooting tool is to connect to the wired interface on the 
console with a Ethernet to wireless bridge to eliminate the wireless interface 
on the console without taking your wireless network out of the equation.  With 
a longer patch cable you can also position the bridge to avoid walls or other 
obstacles to the nearest AP temporarily.

David Hales
Network Systems Administrator
Information Technology Services
1010 N. Peachtree
Clement Hall 117
Cookeville, TN 38505
P 931-372-3983
F 931-372-6130
E dha...@tntech.edu
www.tntech.edu/its




-Original Message-
From: The EDUCAUSE Wireless Issues Constituent Group Listserv 
[mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Kenny, Eric
Sent: Thursday, March 8, 2018 12:59 PM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] gaming on wireless

Hi Mike,

You might also try putting a temporary AP in the room with the Playstation and 
see if it still has the same issue.  With those types of walls, across the hall 
might be on the fringe of service for 5 GHz.

Thanks,
Eric

> On Mar 8, 2018, at 1:46 PM, Michael Dickson  wrote:
> 
> Haven't done spectrum analysis yet. The user had an older PS4 that only 
> supported 2.4GHz but went out and bought a new PS4 Pro and this always 
> connects at 5GHz.
> 
> The predominant AP the device connects to is across the hall which and it's 
> the closest. In the last four days the device has exclusively connected to 
> that AP so roaming does not appear to be an issue (user reported issues as 
> late as yesterday). The walls are cement block.
> 
> Mike
> 
> Michael Dickson
> Network Engineer
> Information Technology
> University of Massachusetts Amherst
> 413-545-9639
> michael.dick...@umass.edu
> PGP: 0x16777D39
> 
> On Mar 8, 2018, at 1:28 PM, Kenny, Eric  wrote:
> 
>> Hi Mike,
>> 
>> Have you taken any RF readings or spectrum analysis in the vicinity of the 
>> game console?  How far away are the APs they are jumping between and what 
>> kinds of physical obstacles are between the AP and the Playstation?  Last 
>> question, have you noticed if the Playstation is using the 2.4 or 5 GHz band?
>> 
>> These issues can be tricky to find a conclusive answer, due to the number of 
>> variables involved.  I’d look into which band the device is using, see if 
>> there have been any RF “events” that would trigger a channel change, or if 
>> someone turned on the microwave, etc.
>> 
>> Thanks,
>> ---
>> Eric Kenny
>> Network Architect
>> Harvard University IT
>> ---
>> 
>>> On Mar 8, 2018, at 1:16 PM, Michael Dickson  wrote:
>>> 
>>> Has anyone received feedback from users about lags or drops while gaming on 
>>> wireless?
>>> 
>>> We support gaming consoles on a "devices" SSID  (PSK with MAC auth). We're 
>>> trying to resolve reports from a user with a new PS4 Pro who is 
>>> experiencing issues while gaming. For perspective, it was reported that 
>>> during a 3 hour gaming session the user experiences about 8 lags and 4-5 
>>> disconnects. Lags are described as freezes for a few seconds which 
>>> auto-correct. Disconnects are described as the whole console losing 
>>> connectivity and a "Retest Network Connection" is required to get it 
>>> working again (though time might also be a factor in getting it back on).  
>>> Apparently most issues occur right after power up then smooth out (user 
>>> turns on console just prior to gaming). Logs show the device jumps APs 
>>> every now and then but we haven't been able to match this up to the user's 
>>> experience yet.
>>> 
>>> Our eduroam and open (CP) SSID seem to working fine. Client density is not 
>>> a factor and the user reports great speeds.
>>> 
>>> Are reports of gaming lag on enterprise wireless common or the exception? 
>>> What's the first things to check to identify where lag comes from? Should 
>>> device roaming introduce lag or can that occur lag free?  I realize we're 
>>> talking UDP with gaming with no buffer so issues would present themselves 
>>> more readily while gaming.. The PS4 is currently in user debug and we've 
>>> asking the user to record timestamps to try to corroborate logged events. 
>>> We have a TAC ticket open with the vendor.
>>> 
>>> Any shared gaming experiences or advice about how to make gaming consoles 
>>> happy would be appreciated.
>>> 
>>> Mike
>>> 
>>> Michael Dickson
>>> Network Engineer
>>> Information Technology
>>> University of Massachusetts Amherst
>>> 413-545-9639
>>> michael.dick...@umass.edu
>>> PGP: 0x16777D39
>>> 
>>> 
>>> **
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>>> Group discussion list can be found at http://www.educause.edu/discuss.
>>> 
>> 
>> 
>> **
>> Participation and subscription information for this EDUCAUSE Constituent 
>> Group discussion list can be found at 

RE: [WIRELESS-LAN] EIGRP equal cost load balancing over wireless bridges

[Hales, David]

I can’t think of any interaction between EIGRP ECLB and the WLC that would 
cause this issue without some other additional factor.  Are you running per 
destination or per packet load balancing?  If it’s per destination, traffic 
back to a controller might be on one link that might be dropping.  Is there 
anything in the logging on the wireless bridges that might indicate that one of 
the links is flapping?  Running per packet has the possibility of causing out 
of order packet delivery.  I’m not familiar enough with the WLC traffic to know 
if that would cause any issues.  Someone else might be able to speak to that?

David Hales
Network Systems Administrator
Information Technology Services
1010 N. Peachtree
Clement Hall 117
Cookeville, TN 38505
P 931-372-3983
F 931-372-6130
E dha...@tntech.edu
www.tntech.edu/its
[Tennessee Tech Logo]
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From: The EDUCAUSE Wireless Issues Constituent Group Listserv 
[mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Mark Duling
Sent: Tuesday, February 27, 2018 6:45 PM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: [WIRELESS-LAN] EIGRP equal cost load balancing over wireless bridges

Hello all,

Is anyone running two pairs of inexpensive wireless bridges–say ubiquity 
AirFiber–and using EIGRP equal cost load balancing over them? It seems to me 
that should be an inexpensive way to support reasonably high bandwidth building 
over redundant links.

I ask because a while back as a test I changed a remote building with two pairs 
of wireless transparent bridges (one acting as primary / other acting as 
backup, each pair a different vendor but both wired interfaces 100 Mb) from 
routing over the primary to use equal cost load balancing over both. After that 
we'd occasionally see our Cisco capwap APs disassociate and re-associate from 
our WLCs on campus where they weren't doing that when data was routed over a 
single link.

Does anyone know why that might happen with ECLB? Or in any case, is anyone 
successfully using a dual link wireless bridge setup with both links active? 
Thanks

Mark - Biola IT Operations
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RE: Offline/Spare Gear Inventory Size

[Hales, David]

We are an Aerohive shop.  We keep a set of current models for deployment that 
serves as spare stock.  With that said, based on the average turnaround time 
for RMA units, we’ve probably only had as many as 2 of a given model in use as 
a replacement for a failed unit at the same time once or twice in the past 4 
years.  It would really depend on the average failure rate for your particular 
model and your deployment size.  I would feel very confident with 1% with 
almost any product line out there, and would probably consider anything over 1% 
as overkill.

David Hales
Network Systems Administrator
Information Technology Services
1010 N. Peachtree
Clement Hall 117
Cookeville, TN 38505
P 931-372-3983
F 931-372-6130
E dha...@tntech.edu
www.tntech.edu/its
[Tennessee Tech Logo]
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From: The EDUCAUSE Wireless Issues Constituent Group Listserv 
[mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Trinklein, Jason R
Sent: Monday, February 26, 2018 12:21 PM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: [WIRELESS-LAN] Offline/Spare Gear Inventory Size

Hi All,

I’m curious to know the size of your spare gear inventories. Do you keep a 
percentage of each model of AP in inventory, and what is your reasoning? 
Storms? Last minute/emergency wireless coverage needs?

What percentage of your live gear do you keep as offline inventory? (100 live 
APs with 1 inventory AP = 1% offline inventory).

With Xirrus, we had an offline inventory of more than 10% of live inventory. We 
kept that inventory to cover the high failure rate of the equipment, the 
incidence of hurricanes and lightning strikes in our area, the broad range of 
AP models on campus, and last minute large events in low coverage areas.

We are evaluating the minimum offline inventory for our new Aruba gear as we 
finish up the vendor switch. I have been thinking 1-2%, but I want to see what 
you guys do first, and why.

Thank you,
--
Jason Trinklein
Wireless Engineering Manager
College of Charleston
81 St. Philip Street | Office 311D | Charleston, SC 29403
trinkle...@cofc.edu | (843) 300–8009

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RE: Wireless printers and other devices in residence halls

[Hales, David]

Our residence hall policy and campus acceptable use policy specify that 
students are not allowed to connect routers, switches, or access points to the 
wired network, or operate independent wireless access points in campus 
facilities.  Our NAC and switches are able to handle any that get plugged into 
wired drops.  We don't have too many wireless issues caused by rogue APs, but 
when we detect an issue related to one, we locate them rather than mitigate 
them.  We haven't run into one where the student was really trying to hide an 
AP, so we can usually localize it to a room or two, and then residential life 
finds them during one of their room inspections.  Usually the student is just 
ignorant of the policy violation, and packs the device away.  We haven't had 
any really rebellious students that insisted on bringing the device back online 
at a later time.

David Hales
Network Systems Administrator
Information Technology Services
1010 N. Peachtree
Clement Hall 117
Cookeville, TN 38505
P 931-372-3983
F 931-372-6130
E dha...@tntech.edu
www.tntech.edu/its
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From: The EDUCAUSE Wireless Issues Constituent Group Listserv 
[mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Davis, Steve
Sent: Thursday, October 19, 2017 9:56 AM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: [WIRELESS-LAN] Wireless printers and other devices in residence halls

I wanted to get an idea how everyone is handling students bringing in all types 
of wireless devices, which are basically access points.  We have so many 
printers, TVs, Roku devices, game systems and who knows what else out there in 
the student rooms and these devices are causing issues with our campus wireless 
network.

Do you allow these devices on your network?  If not, how do you prevent the 
students from having them?

I have Cisco wireless controllers where I can block rogue APs but that keeps 
the APs which are containing the rogue AP from servicing the clients and I 
don't have dense enough coverage to be able to do this for every rogue device.

Thanks in advance
-Steve

Steve Davis | Network Manager
Department of Technology Infrastructure

Lock Haven University
519 Robinson Hall
401 North Fairview Street, Lock Haven, PA 17745
Phone: 570-484-2290 | sda...@lockhaven.edu | 
www.lockhaven.edu

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