[Cerowrt-users] [Cerowrt-devel] Chromecast on cerowrt

Stephen Hemminger stephen at networkplumber.org
Fri Aug 30 14:08:22 EDT 2013

On Fri, 30 Aug 2013 12:29:30 -0400
Christopher Robin <pheoni at gmail.com> wrote:

> Ah, let me explain the problem better.
> The chromecast connects just fine via 2.4 ghz. It's unable to connect via
> 5ghz or ethernet. But to stream to the chromecast you have to be connected
> to the router via 2.4ghz as well. If you're connected via ethernet or 5ghz
> you can't see the chromecast to stream to it.
> I've tried several devices (ipad, android phone, desktop) and they all come
> back with the same result. If you connect to the network via 2.4ghz the
> chromecast works fine. If you connect any other way, you can't talk to the
> chromecast.
> I've verified that the networks I'm connecting to are all on the same vlan.

On Cerowrt the 2.4 and 5 Ghz are separate IP networks (not bridged).
Chromecast uses some form of network local communication (Multicast?)
that is not forwarded. For normal users this is a security feature.

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