BUILT FOR HOME!!!! Apple TV is fine, I guess they trust their other security measures sufficiently....
A little off topic, but we found that Apple will use any and everything to get AirPlay to work. Mainly it will connect through bluetooth or even it's own wireless network that works in the background. You have to force it to use the network only. Robert Schneider Network Engineer Information Technology | Rollins College 407.628.6380 | [email protected]<mailto:[email protected]> From: The EDUCAUSE Wireless Issues Community Group Listserv <[email protected]<mailto:[email protected]>> on behalf of Jason Cook <[email protected]<mailto:[email protected]>> Sent: Thursday, September 12, 2019 0:56 To: [email protected]<mailto:[email protected]> Subject: Re: [WIRELESS-LAN] To RFC1918 or Not RFC1918? * External Email * We had a job come in for this so I decided to have a bit of a play. Chromecast and Windows Chrome Browser on same Public range - Yes had to enable flag to allow casting. Android could cast fine in this situation Outside of that though, I cannot cast to a chromecast from a public IP if it's not in the same IP range as the chromecast. The chromecast can be public or private, but the caster must be a private IP. BUILT FOR HOME!!!! Apple TV is fine, I guess they trust their other security measures sufficiently.... Cisco TAC Comment " The TCP handshake is getting completed between client and chromecast, but as soon as the handshake is complete the chromecast is sending out FIN,ACK which is terminating the session." Google Support Comment "This is kinda interesting. To answer that, Chromecast is programmed to only work with a private IP address to avoid other devices within that address from interacting to the Chromecast. So in order for other devices to interact with the Chromecast, the devices must be on the same private IP address." We are looking into these quite seriously I believe. They seem pretty good and simple. Of course they aren't $60 https://nam01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.vivi.io&data=02%7C01%7Cilyons%40ROLLINS.EDU%7C70767e1980b6480f104508d7373d8e50%7Cb8e8d71a947d41dd81dd8401dcc51007%7C0%7C0%7C637038609842277321&sdata=H0r28dVdES%2B9BPRsNM1nxi58ESw2gnJ4GsCZoymv8oY%3D&reserved=0<https://nam01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.vivi.io&data=02%7C01%7CRSCHNEIDER%40Rollins.edu%7Cc4b0fd7e1d4a4e13704008d7378b50bd%7Cb8e8d71a947d41dd81dd8401dcc51007%7C0%7C0%7C637038943798844445&sdata=HJ6z9RCQyjIoptHBcp8Zuv3ALGfBR9gznoT1Y%2F%2BBlU8%3D&reserved=0> -- Jason Cook Information Technology and Digital Services The University of Adelaide, AUSTRALIA 5005 ----------------------------------------------------------- This email message is intended only for the addressee(s) and contains information which may be confidential and/or copyright. If you are not the intended recipient please do not read, save, forward, disclose, or copy the contents of this email. If this email has been sent to you in error, please notify the sender by reply email and delete this email and any copies or links to this email completely and immediately from your system. No representation is made that this email is free of viruses. Virus scanning is recommended and is the responsibility of the recipient. -----Original Message----- From: The EDUCAUSE Wireless Issues Community Group Listserv <[email protected]<mailto:[email protected]>> On Behalf Of Tomo Sent: Tuesday, 23 April 2019 11:50 PM To: [email protected]<mailto:[email protected]> Subject: Re: [WIRELESS-LAN] To RFC1918 or Not RFC1918? I've not tried to replicate anything in practice but this discussion does seem quite relevant to the issue https://nam01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fsupport.google.com%2Fchromecast%2Fforum%2FAAAAt7PFQG4ZDyxDR791W8%2F%3Fhl%3Den%26gpf%3D%2523!topic%252Fchromecast%252FZDyxDR791W8%253Bcontext-place%253Dtopicsearchin%252Fchromecast%252Fpublic%252420ip&data=02%7C01%7Cilyons%40ROLLINS.EDU%7C70767e1980b6480f104508d7373d8e50%7Cb8e8d71a947d41dd81dd8401dcc51007%7C0%7C0%7C637038609842277321&sdata=bhApwNxcqsZoFFCURCr%2FwYDDMy4JRLCZC4BXZv8UDh4%3D&reserved=0<https://nam01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fsupport.google.com%2Fchromecast%2Fforum%2FAAAAt7PFQG4ZDyxDR791W8%2F%3Fhl%3Den%26gpf%3D%2523!topic%252Fchromecast%252FZDyxDR791W8%253Bcontext-place%253Dtopicsearchin%252Fchromecast%252Fpublic%252420ip&data=02%7C01%7CRSCHNEIDER%40Rollins.edu%7Cc4b0fd7e1d4a4e13704008d7378b50bd%7Cb8e8d71a947d41dd81dd8401dcc51007%7C0%7C0%7C637038943798844445&sdata=Kbeg5NiUh3Pj%2BW2c6Vf6A%2ByeJO%2FXm7d66%2FSAbzjN2cs%3D&reserved=0> which points to this flag in now being enabled in Chrome browsers - so there's an admission that casting has been limited to RFC1918, and you can turn that off, albeit for browsers. chrome://flags/#media-router-cast-allow-all-ips Tomo | Infrastructure Architect | Information Technology - Operations and Assurance London Business School | Regent's Park | London NW1 4SA | UK D: +44 (0)20 7000 7777 | T: +44 (0)20 7000 7000 E: [email protected]<mailto:[email protected]> | W: https://nam01.safelinks.protection.outlook.com/?url=www.london.edu&data=02%7C01%7Cilyons%40ROLLINS.EDU%7C70767e1980b6480f104508d7373d8e50%7Cb8e8d71a947d41dd81dd8401dcc51007%7C0%7C0%7C637038609842277321&sdata=X6AjPUHc20pGt8bOBi3QNJAWDwEz%2B3sUDCSv5d38ILI%3D&reserved=0<https://nam01.safelinks.protection.outlook.com/?url=www.london.edu&data=02%7C01%7CRSCHNEIDER%40Rollins.edu%7Cc4b0fd7e1d4a4e13704008d7378b50bd%7Cb8e8d71a947d41dd81dd8401dcc51007%7C0%7C0%7C637038943798854439&sdata=mcXUAS8yQFbVmHEJNibEHJxoAEaVXoqMmtrpXWG0qkg%3D&reserved=0> Connect with us: LinkedIn | Twitter | Facebook | Instagram -----Original Message----- From: The EDUCAUSE Wireless Issues Community Group Listserv <[email protected]<mailto:[email protected]>> On Behalf Of Rumford, Charles Sent: 23 April 2019 14:45 To: [email protected]<mailto:[email protected]> Subject: Re: [WIRELESS-LAN] To RFC1918 or Not RFC1918? On 4/22/19 2:55 PM, Rumford, Charles wrote: > Tim - > > I'm curious about the echo devices. Are they actually using mDNS to > control the device or is the traffic heading up into the cloud and > then back down? I know for Spotify at least when I'm not home I can > still see the echo dots in my house listed in Spotify. > > I haven't explicitly tested with a Chromecast, but I'm using a Google > Home for my testing. I did an packet capture from the point of view of > the controllers and could see the mDNS traffic heading towards the > phone, but the phone itself wasn't presenting the Home on the screen > until I moved the phone to RFC1918 space. I have also noticed that > Roku's app only likes being on RFC1918 space to be able to control a > Roku. :( I went out and purchased a Google Chromecast v2 this morning, and still not seeing in on my Android phone. I'm curious about all the people who are able to use Chromecast from an Android phone with their devices on Public IP space. > -- > Charles Rumford > IT Architect > ISC Tech Services > University of Pennsylvania > OpenPGP Key ID: 0x173F5F3A > (Sent from mobile device) > ---------------------------------------------------------------------- > ---------- > *From:* Tim Tyler <[email protected]<mailto:[email protected]>> > *Sent:* Monday, April 22, 2019 14:27 > *To:* > [email protected]<mailto:[email protected]> > *Subject:* Re: [WIRELESS-LAN] To RFC1918 or Not RFC1918? > > Charles, > We are using public ipv4 addresses and our Droids use Airgroup to > cast successfully to Echo's, Chromecasts, and other devices. But the > one thing we have had a problem with recently is that we can't connect > to Google Home Mini speakers any more. Not sure why yet. Those > devices were working like 3 weeks ago. We have had a ticket open on > this concern with Aruba for the last two weeks. But as far as I > know, all other casting services with both Apple and Droids are still > working with our public ipv4 which traverse different vlans so it must use > mDNS I would think. > > Tim > > -----Original Message----- > From: The EDUCAUSE Wireless Issues Community Group Listserv > [mailto:[email protected]] On Behalf Of Hunter Fuller > Sent: Monday, April 22, 2019 1:17 PM > To: > [email protected]<mailto:[email protected]> > Subject: Re: [WIRELESS-LAN] To RFC1918 or Not RFC1918? > > Charles, are you serious? > > We are in the middle of a migration toward public IPv4 space, so that > it will be comparable to our public dual-stack IPv6 space when we roll > that out. > > This is a completely boneheaded move by Google. I almost can't believe it. > > -- > Hunter Fuller > Router Jockey > VBH Annex B-5 > +1 256 824 5331 > > Office of Information Technology > The University of Alabama in Huntsville Network Engineering > > On Mon, Apr 22, 2019 at 12:22 PM Rumford, Charles > <[email protected]<mailto:[email protected]>> > wrote: >> >> Good Afternoon all - >> >> Penn is currently exploring deploying Aruba's AirGroup for our campus >> with Residential life group being the primary driver for it. During >> my testing, I discovered Android devices will not do any kind of >> casting or mDNS if the phone has a public IPv4 address. Doing some >> digging around the Internet, I discovered this was put in place in >> early 2018 for not only Android devices, but also things like doing >> tab sharing from within the Chrome browser. >> >> This has sparked a discussion with the ranks of both management and >> engineers at Penn. Do we move all of our wireless devices to RFC-1918 >> space or do we continue using publicly routable IP address space? >> Either option for us will be dual stacked with a public IPv6 address. >> >> But I'm curious what other institutions are doing for IPv4 addressing >> for their primary SSIDs? >> >> -- >> Charles Rumford >> IT Architect >> ISC Tech Services >> University of Pennsylvania >> OpenPGP Key ID: 0x173F5F3A (2018/07/05) >> >> ********** >> Participation and subscription information for this EDUCAUSE >> Constituent Group discussion list can be found at >> https://nam01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.educause.edu%2Fdiscuss&data=02%7C01%7Cilyons%40ROLLINS.EDU%7C70767e1980b6480f104508d7373d8e50%7Cb8e8d71a947d41dd81dd8401dcc51007%7C0%7C0%7C637038609842287313&sdata=L45wWeTKcchYgtU4latcPRxaIyT87gIndRoAinzeadQ%3D&reserved=0<https://nam01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.educause.edu%2Fdiscuss&data=02%7C01%7CRSCHNEIDER%40Rollins.edu%7Cc4b0fd7e1d4a4e13704008d7378b50bd%7Cb8e8d71a947d41dd81dd8401dcc51007%7C0%7C0%7C637038943798854439&sdata=pPSaHmZxzM2p%2FcRdRd%2B34gkXrNS6%2FQ6Y6NqbFuRWSZM%3D&reserved=0>. >> > > ********** > Participation and subscription information for this EDUCAUSE > Constituent Group discussion list can be found at > https://nam01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.educause.edu%2Fdiscuss&data=02%7C01%7Cilyons%40ROLLINS.EDU%7C70767e1980b6480f104508d7373d8e50%7Cb8e8d71a947d41dd81dd8401dcc51007%7C0%7C0%7C637038609842287313&sdata=L45wWeTKcchYgtU4latcPRxaIyT87gIndRoAinzeadQ%3D&reserved=0<https://nam01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.educause.edu%2Fdiscuss&data=02%7C01%7CRSCHNEIDER%40Rollins.edu%7Cc4b0fd7e1d4a4e13704008d7378b50bd%7Cb8e8d71a947d41dd81dd8401dcc51007%7C0%7C0%7C637038943798864433&sdata=JA464jpKYI33jN1GlDBxArLOkbHZPdMqGwQwtYM1%2BJ0%3D&reserved=0>. > > ********** > Participation and subscription information for this EDUCAUSE > Constituent Group discussion list can be found at > https://nam01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.educause.edu%2Fdiscuss&data=02%7C01%7Cilyons%40ROLLINS.EDU%7C70767e1980b6480f104508d7373d8e50%7Cb8e8d71a947d41dd81dd8401dcc51007%7C0%7C0%7C637038609842287313&sdata=L45wWeTKcchYgtU4latcPRxaIyT87gIndRoAinzeadQ%3D&reserved=0<https://nam01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.educause.edu%2Fdiscuss&data=02%7C01%7CRSCHNEIDER%40Rollins.edu%7Cc4b0fd7e1d4a4e13704008d7378b50bd%7Cb8e8d71a947d41dd81dd8401dcc51007%7C0%7C0%7C637038943798864433&sdata=JA464jpKYI33jN1GlDBxArLOkbHZPdMqGwQwtYM1%2BJ0%3D&reserved=0>. > ********** Participation and subscription information for this > EDUCAUSE Constituent Group discussion list can be found at > https://nam01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.educause.edu%2Fdiscuss&data=02%7C01%7Cilyons%40ROLLINS.EDU%7C70767e1980b6480f104508d7373d8e50%7Cb8e8d71a947d41dd81dd8401dcc51007%7C0%7C0%7C637038609842287313&sdata=L45wWeTKcchYgtU4latcPRxaIyT87gIndRoAinzeadQ%3D&reserved=0<https://nam01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.educause.edu%2Fdiscuss&data=02%7C01%7CRSCHNEIDER%40Rollins.edu%7Cc4b0fd7e1d4a4e13704008d7378b50bd%7Cb8e8d71a947d41dd81dd8401dcc51007%7C0%7C0%7C637038943798874430&sdata=0cR3zMUp4ZNhMnamM%2FvdbE8pKwoFcOyhVxyQf%2BTiMmk%3D&reserved=0>. > -- Charles Rumford IT Architect ISC Tech Services University of Pennsylvania OpenPGP Key ID: 0x173F5F3A (2018/07/05) ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at https://nam01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.educause.edu%2Fdiscuss&data=02%7C01%7Cilyons%40ROLLINS.EDU%7C70767e1980b6480f104508d7373d8e50%7Cb8e8d71a947d41dd81dd8401dcc51007%7C0%7C0%7C637038609842287313&sdata=L45wWeTKcchYgtU4latcPRxaIyT87gIndRoAinzeadQ%3D&reserved=0<https://nam01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.educause.edu%2Fdiscuss&data=02%7C01%7CRSCHNEIDER%40Rollins.edu%7Cc4b0fd7e1d4a4e13704008d7378b50bd%7Cb8e8d71a947d41dd81dd8401dcc51007%7C0%7C0%7C637038943798874430&sdata=0cR3zMUp4ZNhMnamM%2FvdbE8pKwoFcOyhVxyQf%2BTiMmk%3D&reserved=0>. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at https://nam01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.educause.edu%2Fdiscuss&data=02%7C01%7Cilyons%40ROLLINS.EDU%7C70767e1980b6480f104508d7373d8e50%7Cb8e8d71a947d41dd81dd8401dcc51007%7C0%7C0%7C637038609842287313&sdata=L45wWeTKcchYgtU4latcPRxaIyT87gIndRoAinzeadQ%3D&reserved=0<https://nam01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.educause.edu%2Fdiscuss&data=02%7C01%7CRSCHNEIDER%40Rollins.edu%7Cc4b0fd7e1d4a4e13704008d7378b50bd%7Cb8e8d71a947d41dd81dd8401dcc51007%7C0%7C0%7C637038943798884426&sdata=mHQNkgc8G8zngSlLpRExUcl3Y2RVE9WXqBu9MWIfl6c%3D&reserved=0>. ********** Replies to EDUCAUSE Community Group emails are sent to the entire community list. 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