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Bakhtiyor
Asked: 2011-10-28 13:45:00 +0800 CST

How to share my WiFi Internet via WiFi? [duplicate]

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I am connecting to a WiFi network through my laptop in Ubuntu. Now I need to share my Internet connection with my wife's netbook because her netbook is not able to connect to that WiFi network directly, because of its weak signal.

How can I do that in Ubuntu?

wireless

3 Answers

  1. Best Answer

    Option 0: Solve this with hardware!

    I'll start with the alternative: Buy a wireless repeater. This is just a little box that repeats the wireless signal onto the main router. Sounds just what you're after because it means you won't have to be there for things to work.

    They don't even cost that much.

    Option 1: Ad-Hoc networking

    But failing that, you will need two wifi cards in your machine for this to work. You can buy an external one if (as I suspect) you only have one wireless card but this is why I suggested a repeater.

    After that, you can either use Ad-Hoc networking by using Network Manager to create a new wireless connection. Give it a name, set some security and tell it to share the network connection... And that's about it. Ad-Hoc isn't that robust and isn't supported by all devices (my Nokia N900 used to really hate it).

    Option 2: hostapd

    Then there's hostapd. This should expose the network card as a full access point provided it supports the hardware. If you have to buy hardware specifically for this, you should be able to get something that they support.

    It's just a bit more fuss to get going.

    Option 3: another router

    If your laptop also has a ethernet card, you could use Network Manager to share your connection over it and route that into the WAN port of another router. This might be viable if you have a router lying around and you don't mind your laptop being tied to it.

    Just edit the Auto eth0 connection so that under IPv4 Settings, the method is "Shared to other computers" and that should be about it. Similarly if both computers can be joined together, you could just use direct network cable with this setting.

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  2. If you are lucky you can just get some new firmware to throw into an old router like DD-WRT, Tomatoe, Gargoyle or whatever else you think is good. If not just look through some reviews on http://www.wifirepeaterreviews.com and find something decent that isn't causing anyone problems.

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  3. Hi you need to configure hostapd

    I have configure following in hostapd /etc/hostapd/hostapd.conf with WPA authentication options for wireless users

    01 interface=wlan0

    02 driver=nl80211

    03 ssid=dontMessWithVincentValentine

    04 hw_mode=g

    05 channel=6

    06 macaddr_acl=0

    07 auth_algs=1

    08 ignore_broadcast_ssid=0

    09 wpa=3

    10 wpa_passphrase=KeePGuessinG

    11 wpa_key_mgmt=WPA-PSK

    12 wpa_pairwise=TKIP

    13 rsn_pairwise=CCMP

    sudo hostapd /etc/hostapd/hostapd.conf

    In graphical way u can try this link

    http://www.howtogeek.com/116409/how-to-turn-your-ubuntu-laptop-into-a-wireless-access-point/

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