[cisco-voip] Collaboration Endpoint (CE) 9.0 and Captive Portals

[Brian Meade]

I believe this is a new feature in CE 9.x.  They mentioned some of it here
at Collab VT.  They've got a few URLs they check against for stuff like
this and don't seem to be related at all to an underlying OS.

On Thu, Jun 8, 2017 at 12:01 PM, Anthony Holloway <
avholloway+cisco-voip at gmail.com> wrote:

> I just upgraded a DX80 to ce9.0.1.4c1e2ba and I'm noticing the following
> warning:
>
> [image: image.png]
> Now, in this environment, yes, there is a proxy sitting between the hosts
> on the network and the internet.  So, this is not a total surprise.
>
> However, it was not doing this on CE8.x.
>
> When I packet captured the DX80 for a bit, I saw DNS lookups for
> clients3.google.com, and then requests for HTTP GET clients3.google.com/
> generate_204
>
> A quick internet search brings up this web page:
> https://www.chromium.org/chromium-os/chromiumos-design-
> docs/network-portal-detection
>
> So, is Cisco's CE software built on top of Chromium OS?  Either way, why
> does the DX80 need access to the Internet at all?  The release notes, admin
> guide, and bugsearch were no help.  So, now I'm relying on your own
> personal knowledge and experience.  Thanks.
>
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>
>
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