Re: [WIRELESS-LAN] neighbors 'jamming' 2.4GHz spectrum

[John Rodkey]

We found it when we were troubleshooting inconsistent connections on the
mesh device.  The signal level is fairly low at that location, so it's not
clear if it actually caused the connection problems.  We moved to a
dedicated channel, and haven't experienced the disconnection since.  It's
hard to tell if our clients in the dorms are experiencing issues with this,
since reporting is uneven.

John

On Mon, Jan 27, 2020 at 2:01 PM Bryan Ward  wrote:

> If you find the person who did this you should probably offer them a job.
> maybe a call to your local FCC inspector might be in order. Even though
> these are part 15 devices I'm pretty sure that this would count as
> intentional malicious interference. What's the duty cycle of the spectrum?
> Is it actually interfering with your operations?
>
> Get Outlook for Android 
>
> --
> *From:* The EDUCAUSE Wireless Issues Community Group Listserv <
> WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> on behalf of John Rodkey <
> rod...@westmont.edu>
> *Sent:* Monday, January 27, 2020 3:19:04 PM
> *To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU <
> WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>
> *Subject:* [WIRELESS-LAN] neighbors 'jamming' 2.4GHz spectrum
>
> I put quotes around jamming, because it isn't technically.
> We are seeing an SSID named 'ACCESS DENIED' on 2.4GHz channel 4, with a
> 40MHz width and channel 8 extension.
> The signal is not high enough to interfere with most clients, but for some
> of our meshed access points, the signal level is fairly close to the signal
> available from the mesh's host access point.
>
> Is this a common thing?  Have others seen the same on their campus, and if
> so, what are the policies and practices that you follow?
>
> I know the signal is coming from off-campus, but I don't have assurance
> that it is malicious intent or that it is intended to disrupt our campus
> network.
>
> John Rodkey
> Director of Servers and Networks
> Westmont College
>
> **
> Replies to EDUCAUSE Community Group emails are sent to the entire
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> 
>
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>

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Re: [WIRELESS-LAN] neighbors 'jamming' 2.4GHz spectrum

[Bryan Ward]

If you find the person who did this you should probably offer them a job. maybe 
a call to your local FCC inspector might be in order. Even though these are 
part 15 devices I'm pretty sure that this would count as intentional malicious 
interference. What's the duty cycle of the spectrum? Is it actually interfering 
with your operations?

Get Outlook for Android


From: The EDUCAUSE Wireless Issues Community Group Listserv 
 on behalf of John Rodkey 

Sent: Monday, January 27, 2020 3:19:04 PM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU 
Subject: [WIRELESS-LAN] neighbors 'jamming' 2.4GHz spectrum

I put quotes around jamming, because it isn't technically.
We are seeing an SSID named 'ACCESS DENIED' on 2.4GHz channel 4, with a 40MHz 
width and channel 8 extension.
The signal is not high enough to interfere with most clients, but for some of 
our meshed access points, the signal level is fairly close to the signal 
available from the mesh's host access point.

Is this a common thing?  Have others seen the same on their campus, and if so, 
what are the policies and practices that you follow?

I know the signal is coming from off-campus, but I don't have assurance that it 
is malicious intent or that it is intended to disrupt our campus network.

John Rodkey
Director of Servers and Networks
Westmont College

**
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list. If you want to reply only to the person who sent the message, copy and 
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neighbors 'jamming' 2.4GHz spectrum

[John Rodkey]

I put quotes around jamming, because it isn't technically.
We are seeing an SSID named 'ACCESS DENIED' on 2.4GHz channel 4, with a
40MHz width and channel 8 extension.
The signal is not high enough to interfere with most clients, but for some
of our meshed access points, the signal level is fairly close to the signal
available from the mesh's host access point.

Is this a common thing?  Have others seen the same on their campus, and if
so, what are the policies and practices that you follow?

I know the signal is coming from off-campus, but I don't have assurance
that it is malicious intent or that it is intended to disrupt our campus
network.

John Rodkey
Director of Servers and Networks
Westmont College

**
Replies to EDUCAUSE Community Group emails are sent to the entire community 
list. If you want to reply only to the person who sent the message, copy and 
paste their email address and forward the email reply. Additional participation 
and subscription information can be found at https://www.educause.edu/community

Re: [WIRELESS-LAN] [External] [WIRELESS-LAN] Chromecasts and App on Phones

[Ethan Grinnell]

Hello,

Hrm, but it does work when the clients and Chromecast are on the same VLAN,
so it doesn't make sense to me that it'd be an issue with the IP address
being public.

I did a bit of tinkering with something along those lines. In our case we
have P2P blocking turned on and wanted to keep it that way. So I used 2
different SSIDs. One regular SSID for the phone, and a special SSID just
for the Chromecast. There are some quirks of P2P blocking on different
SSIDs. I'm going from memory here, so I may not be recalling 100%
correctly. I believe that if P2P blocking is enabled and the clients are on
different SSIDs *and* different VLANs, then packets aren't dropped by the
WLC, but are forwarded upstream (ASA firewall). The firewall has all WLAN
client VLAN/SVI's at the same security level and ASA drops
same-security-level traffic by default. So either allow same-security-level
traffic or give the interface for Chromecast devices a different security
level. That made it mostly work for me.

The only problems with what I did is that the app still wants the devices
on the same SSID for the config to "complete", but that's at the very end
of setup. The phone can be moved back to the regular SSID after setup is
completed and it still works. Also, having to switch SSIDs is confusing for
users.

You are using one SSID and multiple VLANs, so a bit different than what I
was doing, but I'm thinking that it's actually the FW dropping the traffic
that's causing the issue. See if one of those work arounds helps.

Regards,

Ethan Grinnell
CCIE R #39723, BS CmpE
Network Engineer
Office of Information Technology, Technology Infrastructure, Networking
Portland State University
503-725-3205



On Mon, Jan 27, 2020 at 11:37 AM Hurt,Trenton W. 
wrote:

> To get work on public ips try
>
>
>
>
>
> Go to chrome://flags/
>
> Search for “Connect to Cast devices on all IP addresses”
>
> Change from “default” to “enabled”
>
>
>
> *From:* The EDUCAUSE Wireless Issues Community Group Listserv <
> WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> *On Behalf Of *Carson, Dennis
> *Sent:* Monday, January 27, 2020 2:24 PM
> *To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
> *Subject:* Re: [WIRELESS-LAN] [External] [WIRELESS-LAN] Chromecasts and
> App on Phones
>
>
>
> We do use public ip space.
>
>
>
> *Dennis Carson*
>
> *California University of Pennsylvania*
>
> office: 724-938-4215
>
>
>
> *From:* The EDUCAUSE Wireless Issues Community Group Listserv <
> WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> *On Behalf Of *Norton, Thomas
> (Network Operations)
> *Sent:* Monday, January 27, 2020 2:13 PM
> *To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
> *Subject:* Re: [WIRELESS-LAN] [External] [WIRELESS-LAN] Chromecasts and
> App on Phones
>
>
>
> *[External]: *This email originated from outside of California University
> of Pennsylvania.
>
>
>
> Yep, Google developers in their infinite glory!
>
>
>
> Chromecast now complete an HTTP request as part of discovery, as well
> require you be on the same SSID for initial setup.
>
>
>
> Are you utilizing using public IPs?
>
>
>
> If so, I believe the chromecast has some weird mechanisim triggering a 403
> forbidden utilizing different IP spaces when utilizing public space.
>
>
>
> Private space should work with in different vlans/subnets.
>
> *T.J. Norton*
>
> *Wireless Network Architect*
> *Network Operations*
>
> *Office: (434) 592-6552 <(434)%20592-6552> *
>
>
>
> [image: http://www.liberty.edu/media/1616/40themail/wordmark-for-email.jpg]
>
> *Liberty University  |  Training Champions for Christ since 1971*
>
>
>
> On Jan 27, 2020, at 12:09 PM, Carson, Dennis  wrote:
>
> 
> --
>
> [ EXTERNAL EMAIL: Do not click any links or open attachments unless you
> know the sender and trust the content. ]
> --
>
> Hello,
>
>
>
> We use Cisco AP’s. We have one ssid for students, but it has multiple
> subnets. When the Chromecast and Phone end up on different subnets, they
> don’t seem to be able to connect.
>
> Do any colleges have any workarounds or solutions for this?
>
> Also, with the way these devices work, does anyone know if they need to be
> on the same subnet after the initial registration? Ie IF we use a hotspot
> to register them, will they work when they go back to their dorm?
>
>
> Thank you,
> Dennis
>
>
> --
>
>
> [image: Cal U Logo]
> *The content of this email is confidential and intended only for the
> recipient(s) specified. If you received this message by mistake, please
> reply so the sender can correct the error, and then delete this email
> immediately. Do NOT forward it to a third party without the written consent
> of the sender. California University of Pennsylvania is a public agency;
> consequently, this email may be subject to disclosure under the
> commonwealth’s Right-to-Know Law.*
>
> **
> Replies to EDUCAUSE Community Group emails are sent to the entire
> community list. If you want to reply only to the person who sent the
> 

RE: [External] [WIRELESS-LAN] Chromecasts and App on Phones

[Hurt,Trenton W.]

To get work on public ips try


Go to chrome://flags/
Search for “Connect to Cast devices on all IP addresses”
Change from “default” to “enabled”

From: The EDUCAUSE Wireless Issues Community Group Listserv 
 On Behalf Of Carson, Dennis
Sent: Monday, January 27, 2020 2:24 PM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] [External] [WIRELESS-LAN] Chromecasts and App on 
Phones

We do use public ip space.

Dennis Carson
California University of Pennsylvania
office: 724-938-4215

From: The EDUCAUSE Wireless Issues Community Group Listserv 
mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>> 
On Behalf Of Norton, Thomas (Network Operations)
Sent: Monday, January 27, 2020 2:13 PM
To: 
WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] [External] [WIRELESS-LAN] Chromecasts and App on 
Phones

[External]: This email originated from outside of California University of 
Pennsylvania.

Yep, Google developers in their infinite glory!

Chromecast now complete an HTTP request as part of discovery, as well require 
you be on the same SSID for initial setup.

Are you utilizing using public IPs?

If so, I believe the chromecast has some weird mechanisim triggering a 403 
forbidden utilizing different IP spaces when utilizing public space.

Private space should work with in different vlans/subnets.
T.J. Norton
Wireless Network Architect
Network Operations

Office: (434) 592-6552

[http://www.liberty.edu/media/1616/40themail/wordmark-for-email.jpg]

Liberty University  |  Training Champions for Christ since 1971

On Jan 27, 2020, at 12:09 PM, Carson, Dennis 
mailto:car...@calu.edu>> wrote:



[ EXTERNAL EMAIL: Do not click any links or open attachments unless you know 
the sender and trust the content. ]



Hello,



We use Cisco AP’s. We have one ssid for students, but it has multiple subnets. 
When the Chromecast and Phone end up on different subnets, they don’t seem to 
be able to connect.

Do any colleges have any workarounds or solutions for this?

Also, with the way these devices work, does anyone know if they need to be on 
the same subnet after the initial registration? Ie IF we use a hotspot to 
register them, will they work when they go back to their dorm?

Thank you,
Dennis



[Cal U Logo]
The content of this email is confidential and intended only for the 
recipient(s) specified. If you received this message by mistake, please reply 
so the sender can correct the error, and then delete this email immediately. Do 
NOT forward it to a third party without the written consent of the sender. 
California University of Pennsylvania is a public agency; consequently, this 
email may be subject to disclosure under the commonwealth’s Right-to-Know Law.

**
Replies to EDUCAUSE Community Group emails are sent to the entire community 
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Re: [WIRELESS-LAN] [External] [WIRELESS-LAN] Chromecasts and App on Phones

[Jonathan Waldrep]

If you are using multiple VLANs to manage broadcasts/multicasts, this may
not be helping as much as you think. Roughly speaking, resnet, north, and
south parts of campus each get a /17. We have an Aruba setup, and they have
a writeup about it. It may or may not translate to Cisco world very well.

https://community.arubanetworks.com/t5/Validated-Reference-Design/Single-VLAN-Architecture-for-WLAN/ta-p/508698

--
Jonathan Waldrep
Network Engineer
Network Infrastructure and Services
Virginia Tech


On Mon, Jan 27, 2020 at 2:23 PM Carson, Dennis  wrote:

> We do use public ip space.
>
>
>
> *Dennis Carson*
>
> *California University of Pennsylvania*
>
> office: 724-938-4215
>
>
>
> *From:* The EDUCAUSE Wireless Issues Community Group Listserv <
> WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> *On Behalf Of *Norton, Thomas
> (Network Operations)
> *Sent:* Monday, January 27, 2020 2:13 PM
> *To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
> *Subject:* Re: [WIRELESS-LAN] [External] [WIRELESS-LAN] Chromecasts and
> App on Phones
>
>
>
> *[External]: *This email originated from outside of California University
> of Pennsylvania.
>
>
>
> Yep, Google developers in their infinite glory!
>
>
>
> Chromecast now complete an HTTP request as part of discovery, as well
> require you be on the same SSID for initial setup.
>
>
>
> Are you utilizing using public IPs?
>
>
>
> If so, I believe the chromecast has some weird mechanisim triggering a 403
> forbidden utilizing different IP spaces when utilizing public space.
>
>
>
> Private space should work with in different vlans/subnets.
>
> *T.J. Norton*
>
> *Wireless Network Architect*
> *Network Operations*
>
> *Office: (434) 592-6552 <(434)%20592-6552> *
>
>
>
> [image: http://www.liberty.edu/media/1616/40themail/wordmark-for-email.jpg]
>
> *Liberty University  |  Training Champions for Christ since 1971*
>
>
>
> On Jan 27, 2020, at 12:09 PM, Carson, Dennis  wrote:
>
> 
> --
>
> [ EXTERNAL EMAIL: Do not click any links or open attachments unless you
> know the sender and trust the content. ]
> --
>
> Hello,
>
>
>
> We use Cisco AP’s. We have one ssid for students, but it has multiple
> subnets. When the Chromecast and Phone end up on different subnets, they
> don’t seem to be able to connect.
>
> Do any colleges have any workarounds or solutions for this?
>
> Also, with the way these devices work, does anyone know if they need to be
> on the same subnet after the initial registration? Ie IF we use a hotspot
> to register them, will they work when they go back to their dorm?
>
>
> Thank you,
> Dennis
>
>
> --
>
>
> [image: Cal U Logo]
> *The content of this email is confidential and intended only for the
> recipient(s) specified. If you received this message by mistake, please
> reply so the sender can correct the error, and then delete this email
> immediately. Do NOT forward it to a third party without the written consent
> of the sender. California University of Pennsylvania is a public agency;
> consequently, this email may be subject to disclosure under the
> commonwealth’s Right-to-Know Law.*
>
> **
> Replies to EDUCAUSE Community Group emails are sent to the entire
> community list. If you want to reply only to the person who sent the
> message, copy and paste their email address and forward the email reply.
> Additional participation and subscription information can be found at
> https://www.educause.edu/community
> 
>
> **
> Replies to EDUCAUSE Community Group emails are sent to the entire
> community list. If you want to reply only to the person who sent the
> message, copy and paste their email address and forward the email reply.
> Additional participation and subscription information can be found at
> https://www.educause.edu/community
> 
>
> **
> Replies to EDUCAUSE Community Group emails are sent to the entire
> community list. If you want to reply only to the person who sent the
> message, copy and paste their email address and forward the email reply.
> Additional participation and subscription information can be found at
> https://www.educause.edu/community
>

**
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RE: [External] [WIRELESS-LAN] Chromecasts and App on Phones

[Carson, Dennis]

We do use public ip space.

Dennis Carson
California University of Pennsylvania
office: 724-938-4215

From: The EDUCAUSE Wireless Issues Community Group Listserv 
 On Behalf Of Norton, Thomas (Network 
Operations)
Sent: Monday, January 27, 2020 2:13 PM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] [External] [WIRELESS-LAN] Chromecasts and App on 
Phones

[External]: This email originated from outside of California University of 
Pennsylvania.

Yep, Google developers in their infinite glory!

Chromecast now complete an HTTP request as part of discovery, as well require 
you be on the same SSID for initial setup.

Are you utilizing using public IPs?

If so, I believe the chromecast has some weird mechanisim triggering a 403 
forbidden utilizing different IP spaces when utilizing public space.

Private space should work with in different vlans/subnets.
T.J. Norton
Wireless Network Architect
Network Operations

Office: (434) 592-6552

[http://www.liberty.edu/media/1616/40themail/wordmark-for-email.jpg]

Liberty University  |  Training Champions for Christ since 1971


On Jan 27, 2020, at 12:09 PM, Carson, Dennis 
mailto:car...@calu.edu>> wrote:



[ EXTERNAL EMAIL: Do not click any links or open attachments unless you know 
the sender and trust the content. ]



Hello,



We use Cisco AP’s. We have one ssid for students, but it has multiple subnets. 
When the Chromecast and Phone end up on different subnets, they don’t seem to 
be able to connect.

Do any colleges have any workarounds or solutions for this?

Also, with the way these devices work, does anyone know if they need to be on 
the same subnet after the initial registration? Ie IF we use a hotspot to 
register them, will they work when they go back to their dorm?

Thank you,
Dennis



[Cal U Logo]
The content of this email is confidential and intended only for the 
recipient(s) specified. If you received this message by mistake, please reply 
so the sender can correct the error, and then delete this email immediately. Do 
NOT forward it to a third party without the written consent of the sender. 
California University of Pennsylvania is a public agency; consequently, this 
email may be subject to disclosure under the commonwealth’s Right-to-Know Law.

**
Replies to EDUCAUSE Community Group emails are sent to the entire community 
list. If you want to reply only to the person who sent the message, copy and 
paste their email address and forward the email reply. Additional participation 
and subscription information can be found at 
https://www.educause.edu/community

**
Replies to EDUCAUSE Community Group emails are sent to the entire community 
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paste their email address and forward the email reply. Additional participation 
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Re: [External] [WIRELESS-LAN] Chromecasts and App on Phones

[Norton, Thomas (Network Operations)]

Yep, Google developers in their infinite glory!

Chromecast now complete an HTTP ‭request as part of discovery, as well require 
you be on the same SSID for initial setup.

Are you utilizing using public IPs?

If so, I believe the chromecast has some weird mechanisim triggering a 403 
forbidden utilizing different IP spaces when utilizing public space.

Private space should work with in different vlans/subnets.

T.J. Norton
Wireless Network Architect
Network Operations

Office: (434) 592-6552

[http://www.liberty.edu/media/1616/40themail/wordmark-for-email.jpg]

Liberty University  |  Training Champions for Christ since 1971

On Jan 27, 2020, at 12:09 PM, Carson, Dennis  wrote:




[ EXTERNAL EMAIL: Do not click any links or open attachments unless you know 
the sender and trust the content. ]



Hello,



We use Cisco AP’s. We have one ssid for students, but it has multiple subnets. 
When the Chromecast and Phone end up on different subnets, they don’t seem to 
be able to connect.

Do any colleges have any workarounds or solutions for this?

Also, with the way these devices work, does anyone know if they need to be on 
the same subnet after the initial registration? Ie IF we use a hotspot to 
register them, will they work when they go back to their dorm?

Thank you,
Dennis



[Cal U Logo]
The content of this email is confidential and intended only for the 
recipient(s) specified. If you received this message by mistake, please reply 
so the sender can correct the error, and then delete this email immediately. Do 
NOT forward it to a third party without the written consent of the sender. 
California University of Pennsylvania is a public agency; consequently, this 
email may be subject to disclosure under the commonwealth’s Right-to-Know Law.

**
Replies to EDUCAUSE Community Group emails are sent to the entire community 
list. If you want to reply only to the person who sent the message, copy and 
paste their email address and forward the email reply. Additional participation 
and subscription information can be found at 
https://www.educause.edu/community

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Replies to EDUCAUSE Community Group emails are sent to the entire community 
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RE: Chromecasts and App on Phones

[Lee H Badman]

Here’s one of the few Cisco config guides out there, if you haven’t seen it 
yet: 
https://www.cisco.com/c/en/us/td/docs/wireless/technology/mesh/8-2/b_mDNS_gateway_chromecast_support_feature_deployment_guide.html

It’s a bit of a mess at scale. No fault of Cisco’s… this is one of those 
“consumer meets enterprise” train wrecks.

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
SYRACUSE UNIVERSITY
syr.edu

From: The EDUCAUSE Wireless Issues Community Group Listserv 
 On Behalf Of Kushner, Jeff
Sent: Monday, January 27, 2020 1:38 PM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] Chromecasts and App on Phones

Hello,

We have the same situation as Dennis and are also curious to hear the answers.

Thanks
Jeff

From: The EDUCAUSE Wireless Issues Community Group Listserv 
mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>> 
On Behalf Of Carson, Dennis
Sent: Monday, January 27, 2020 11:59 AM
To: 
WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: [WIRELESS-LAN] Chromecasts and App on Phones


Hello,



We use Cisco AP’s. We have one ssid for students, but it has multiple subnets. 
When the Chromecast and Phone end up on different subnets, they don’t seem to 
be able to connect.

Do any colleges have any workarounds or solutions for this?

Also, with the way these devices work, does anyone know if they need to be on 
the same subnet after the initial registration? Ie IF we use a hotspot to 
register them, will they work when they go back to their dorm?

Thank you,
Dennis



[Cal U Logo]
The content of this email is confidential and intended only for the 
recipient(s) specified. If you received this message by mistake, please reply 
so the sender can correct the error, and then delete this email immediately. Do 
NOT forward it to a third party without the written consent of the sender. 
California University of Pennsylvania is a public agency; consequently, this 
email may be subject to disclosure under the commonwealth’s Right-to-Know Law.

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RE: Chromecasts and App on Phones

[Kushner, Jeff]

Hello,

We have the same situation as Dennis and are also curious to hear the answers.

Thanks
Jeff

From: The EDUCAUSE Wireless Issues Community Group Listserv 
 On Behalf Of Carson, Dennis
Sent: Monday, January 27, 2020 11:59 AM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: [WIRELESS-LAN] Chromecasts and App on Phones


Hello,



We use Cisco AP’s. We have one ssid for students, but it has multiple subnets. 
When the Chromecast and Phone end up on different subnets, they don’t seem to 
be able to connect.

Do any colleges have any workarounds or solutions for this?

Also, with the way these devices work, does anyone know if they need to be on 
the same subnet after the initial registration? Ie IF we use a hotspot to 
register them, will they work when they go back to their dorm?

Thank you,
Dennis



[Cal U Logo]
The content of this email is confidential and intended only for the 
recipient(s) specified. If you received this message by mistake, please reply 
so the sender can correct the error, and then delete this email immediately. Do 
NOT forward it to a third party without the written consent of the sender. 
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Chromecasts and App on Phones

[Carson, Dennis]

Hello,



We use Cisco AP’s. We have one ssid for students, but it has multiple subnets. 
When the Chromecast and Phone end up on different subnets, they don’t seem to 
be able to connect.

Do any colleges have any workarounds or solutions for this?

Also, with the way these devices work, does anyone know if they need to be on 
the same subnet after the initial registration? Ie IF we use a hotspot to 
register them, will they work when they go back to their dorm?

Thank you,
Dennis



[Cal U Logo]
The content of this email is confidential and intended only for the 
recipient(s) specified. If you received this message by mistake, please reply 
so the sender can correct the error, and then delete this email immediately. Do 
NOT forward it to a third party without the written consent of the sender. 
California University of Pennsylvania is a public agency; consequently, this 
email may be subject to disclosure under the commonwealth’s Right-to-Know Law.

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RE: [WIRELESS-LAN] Android Rogue Hunting App

[Lee H Badman]

Excellent point, Rand- this is called “Body Fade” (for real) in the larger 
realm of radio direction-finding, a.k.a fox hunting. If you master it, it is 
very handy. But it does get a bit tougher when the rogue is above or below you 
on another floor.

FWIW, here’s a blog article I wrote that explains and shows an example of Body 
Fade in the real world for rogue hunting.

https://wirednot.wordpress.com/2018/09/17/catching-up-with-netscout-at-mfd3-big-news-and-body-fade-explained/

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
SYRACUSE UNIVERSITY
syr.edu

From: The EDUCAUSE Wireless Issues Community Group Listserv 
 On Behalf Of Hall, Rand
Sent: Monday, January 27, 2020 8:00 AM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] Android Rogue Hunting App

This is not a novel idea, but your torso attenuates enough signal to make a 
good "opposite" directional antenna. Hold the device close to your chest and do 
a slow 360.

Rand

Rand P. Hall
Director, Network Services askIT!
Merrimack College
978-837-3532
rand.h...@merrimack.edu

If I had an hour to save the world, I would spend 55 minutes defining the 
problem and five minutes finding solutions. – Einstein


On Sun, Jan 26, 2020 at 8:54 PM Letts, Richard J 
mailto:rle...@purdue.edu>> wrote:
FYI

In order for an application to do WIFI scanning in Android 10 You have to turn 
on Location Permissions
Specific details here:
https://developer.android.com/guide/topics/connectivity/wifi-scan


(I use Wifi analyser on android 10. It works OK, but it’s not a quality tool 
for locating rogues. Something with a directional antenna would do a lot better)


Richard Letts

From: The EDUCAUSE Wireless Issues Community Group Listserv 
mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>> 
On Behalf Of Walter Reynolds
Sent: Wednesday, January 8, 2020 3:20 PM
To: 
WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] Android Rogue Hunting App


It looks like it was started in Android 9 but there is supposed to be a toggle 
in Developer options called "Wi-Fi scan throttling" to disable it on Android 10.

So ignore the man behind the curtain.

Walter Reynolds
Network Architect
Information and Technology Services
University of Michigan
(734) 615-9438


On Wed, Jan 8, 2020 at 3:05 PM Walter Reynolds 
mailto:wa...@umich.edu>> wrote:
I will try to find the reference, but I think Android changes are preventing 
use of tools like this starting with Android 10


Walter Reynolds
Network Architect
Information and Technology Services
University of Michigan
(734) 615-9438


On Wed, Jan 8, 2020 at 2:06 PM Gray, Sean 
mailto:sean.gr...@uleth.ca>> wrote:
Happy New Year to all you happy wi-fi people!

Does anyone have any Android software products they recommend for Rogue 
hunting? Unfortunately Ekahau Mobile Survey (EMS) has been canned, so we are 
looking for alternatives to put to use on an Android tablet. Ideally it should 
be something simple to use, that allows non-technical users to quickly narrow 
down the location of rogues.

Thanks

Sean

Sean Gray | B.Sc (Hons)
Voice, Collaboration & Wireless Network Analyst
ITS, University of Lethbridge


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Re: [WIRELESS-LAN] Android Rogue Hunting App

[Hall, Rand]

This is not a novel idea, but your torso attenuates enough signal to make a
good "opposite" directional antenna. Hold the device close to your chest
and do a slow 360.

Rand

Rand P. Hall
Director, Network Services askIT!
Merrimack College
978-837-3532
rand.h...@merrimack.edu

If I had an hour to save the world, I would spend 55 minutes defining the
problem and five minutes finding solutions. – Einstein


On Sun, Jan 26, 2020 at 8:54 PM Letts, Richard J  wrote:

> FYI
>
>
>
> In order for an application to do WIFI scanning in Android 10 You have to
> turn on Location Permissions
>
> Specific details here:
>
> https://developer.android.com/guide/topics/connectivity/wifi-scan
>
>
>
>
>
> (I use Wifi analyser on android 10. It works OK, but it’s not a quality
> tool for locating rogues. Something with a directional antenna would do a
> lot better)
>
>
>
>
>
> Richard Letts
>
>
>
> *From:* The EDUCAUSE Wireless Issues Community Group Listserv <
> WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> *On Behalf Of *Walter Reynolds
> *Sent:* Wednesday, January 8, 2020 3:20 PM
> *To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
> *Subject:* Re: [WIRELESS-LAN] Android Rogue Hunting App
>
>
>
>
> It looks like it was started in Android 9 but there is supposed to be a
> toggle in Developer options called "Wi-Fi scan throttling" to disable it
> on Android 10.
>
>
>
> So ignore the man behind the curtain.
>
> 
>
> Walter Reynolds
> Network Architect
> Information and Technology Services
> University of Michigan
> (734) 615-9438
>
>
>
>
>
> On Wed, Jan 8, 2020 at 3:05 PM Walter Reynolds  wrote:
>
> I will try to find the reference, but I think Android changes are
> preventing use of tools like this starting with Android 10
>
>
>
> 
>
> Walter Reynolds
> Network Architect
> Information and Technology Services
> University of Michigan
> (734) 615-9438
>
>
>
>
>
> On Wed, Jan 8, 2020 at 2:06 PM Gray, Sean  wrote:
>
> Happy New Year to all you happy wi-fi people!
>
>
>
> Does anyone have any Android software products they recommend for Rogue
> hunting? Unfortunately Ekahau Mobile Survey (EMS) has been canned, so we
> are looking for alternatives to put to use on an Android tablet. Ideally it
> should be something simple to use, that allows non-technical users to
> quickly narrow down the location of rogues.
>
>
>
> Thanks
>
>
>
> Sean
>
>
>
> *Sean Gray* | B.Sc (Hons)
>
> Voice, Collaboration & Wireless Network Analyst
>
> ITS, University of Lethbridge
>
>
>
> **
> Replies to EDUCAUSE Community Group emails are sent to the entire
> community list. If you want to reply only to the person who sent the
> message, copy and paste their email address and forward the email reply.
> Additional participation and subscription information can be found at
> https://www.educause.edu/community
>
> **
> Replies to EDUCAUSE Community Group emails are sent to the entire
> community list. If you want to reply only to the person who sent the
> message, copy and paste their email address and forward the email reply.
> Additional participation and subscription information can be found at
> https://www.educause.edu/community
>
> **
> Replies to EDUCAUSE Community Group emails are sent to the entire
> community list. If you want to reply only to the person who sent the
> message, copy and paste their email address and forward the email reply.
> Additional participation and subscription information can be found at
> https://www.educause.edu/community
>

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