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Stopping Chromecast being hijacked.

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#1 ToM211



  • Joined: 24-April 08

Posted 29 March 2014 - 22:29

Any way to stop someone on the same network hijacking it? We basically share a router and I have a switch running off it (ddrwrt). Is their a way I could set up a "private" network to stop people connecting to it seeing as the switch uses the dchp off the main router.



#2 Ambroos


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Posted 29 March 2014 - 22:37

It should be possible with DD-WRT to sort of create a VLAN and only allow communication outside your VLAN to happen with the gateway/DHCP server (= the main router).

#3 vetGeoffrey B.

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Posted 30 March 2014 - 00:02

It is possible to use it ADHOC connecting to it as a WiFi network rather than connecting it to a network.

#4 episode


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Posted 30 March 2014 - 00:10

It is possible to use it ADHOC connecting to it as a WiFi network rather than connecting it to a network.


But then you can't stream to it from the local internet connection. 


exactly, the only thing you can stream to it is local content on the computer itself ,or if you have an Ethernet connection on a desktop / laptop you can connect to it with Wifi and the internet via Ethernet.


i am not certain of any other way to secure it. I kinda wish that you had to input a code that is displayed on the screen in order to stream to the device as a method of security.

#5 +BudMan


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Posted 30 March 2014 - 00:33

What do you mean hijacking it?  If your on the same network - then yes they would see it.  If you can not create a private wireless network, ie different security and SSID then anyone on that network would be able to see/use the chromecast


What you could do is get your own wireless router and put your self behind the network your sharing..


So you have this


internet -- wirelessrouter -- switch


its sounds like.  So you could do this


internet -- wirelessrouter -- switch -- yourwireless router, or you could be connected to the wireless routers lan port as well just like a switch.  But vs using your new wireless router as AP, you would use it as actual nat router and lets say your current network is -- set your new routers lan/wireless network to be


Now your devices connected to your wireless or its lan ports would be isolated from the shared network just like your current network is isolated from the internet..  And unless they plug into your routers lan ports or switch connected to your router or know your wireless password they would not be on your network and would not see or be able to use your chromecast.

#6 DrOmango



  • Joined: 27-September 01

Posted 30 March 2014 - 02:38

I like messing with people with chromecast on the same network and load up some educational barney videos.

#7 srbeen



  • Joined: 30-November 11

Posted 30 March 2014 - 02:51

Theres no way to whitelist a device or set of devices to a chromecast? You'd think that'd be a useful feature.


Without a lot of firewall rules I don't see an easy way without screwing up the offender or chromecast.