How to bridge a wifi connection between two computers by wifi

Question

Pc 1 : netbook with an usb wifi antenna spotted on a free wifi hotspot

Pc 2 : same model netbook that can't access internet

What I need : Share the wifi connection by the 2 internal WLAN on ubuntu by network-manager

Answer 1

Looks like you need to configure an ad-hoc wirless network with the two internal wifi cards and route the traffic out through the other wireless card.

You can try this method as described here.

1. At the terminal install execute sudo apt-get install dnsmasq-base and then sudo apt-get remove dnsmasq

2. Restart the NetworkManager by executing sudo /etc/init.d/network-manager restart

3. Left-click on the NetworkManager icon and click "Create New Wireless Network"

4. Name it "UbuntuAdhoc" and set the encryption to "WEP40"

5. Connect PC2 using Ad-Hoc to the PC1

Read here and here for more information on the subject.