Android WiFi Internet connection sharing

Can an android phone e.g. nexus 5, connect to a WiFi Internet connection and share that connection acting as WiFi extender?
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Davis McCarnOwnerCommented:
The short answer is no and it is because devices ( laptops, phones, tablets, even routers ) are designed to allow each communication channel to be used for only one purpose at a time.  You can use a cellular or network connected device as a mobile hotspot because the internet connection is using different hardware and you are telling the wifi portion to share access to that connection.
You can; however, set your android to share its Bluetooth connection if its internet is through wifi:
Daniel McAllisterPresident, IT4SOHO, LLCCommented:
The android system on your phone is going to have certain limits placed on it by your carrier (e.g: you can only enable hotspot sharing of your cellular data plan if you've paid for the service).

That said, I'm not even sure that a jail-broken android would allow you to create a second WiFi interface -- a condition of setting up your phone as an extender or repeater, much less a "router" the way a hotspot works.

Certainly, if you wanted to play with this, you'd have to jailbreak your phone as a first step.

Gerwin Jansen, EE MVETopic Advisor Commented:
To support the first post, I've been using wifi-bluetooth tethering on my Android mobile successfully.

No wifi sharing possibility that I know of.
Daniel McAllisterPresident, IT4SOHO, LLCCommented:
Sorry, I thought my implication was clear, but I'll be more specific here (the original question said nothing about bluetooth):
 1) Android devices USUALLY have 3 kinds of network ports:
     a) cellular data
     b) wifi data
     c) bluetooth data
 2) Android apps exist to map traffic through any one of these to another (as essentially a router/gateway)
    a) the MOST popular is the mapping of WiFi through your cellular (aka: WiFi Hotspot)
    b) the ones referred to above are mapping bluetooth through your WiFi
    c) other configs/mixtures are possible (perhaps with an already-developed ap, or by jailbreaking your phone)
 3) Even with a jailbreak, you are not likely to be able to build a SECOND interface onto any of the physical networking devices... so you CANNOT map cellular data back onto another cellular service, re-broadcast WiFi, or re-route bluetooth.


PS: If you would like fries with that, go to McDonald's -- THAT wasn't part of the original question either! :)

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ag1iffitAuthor Commented:
If the android device can USB tether with WiFi on then this is a method to share WiFi Internet but another device is needed to "extend" WiFi, e.g. a wireless network device that can accept internet via USB e.g. some NAS devices or a laptop with software router running.
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