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I have a WiFi router at home, and sometimes I have guests which need to access to the Internet via my WiFi. It's quite troubling, though, to give them the master password to my access point; I only want to give them temporary access to my private network.

What is the best way to share my private WiFi connection with others without a temporary password change? Disabling requiring password and enabling list of privileged MAC addresses (MAC filtering) isn't an ideal solution.

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Does the router allow a guest network (surprisingly many do). If you want to use a local solution as suggested by Antony, which OS's do you run? –  Hennes Apr 27 '13 at 14:08
    
I have both Windows 7 and Linux Debian. Solutions for both operating systems are welcome. +1 for guest network. –  patryk.beza Apr 30 '13 at 10:25

2 Answers 2

up vote 6 down vote accepted

The fastest way: Use your laptop with WiFi. Run as administrator:

netsh wlan set hostednetwork key=somepassword 
netsh wlan start hostednetwork

To get the SSID:

netsh wlan show hostednetwork

You can netsh wlan stop hostednetwork after that to stop any time.

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+1 for brief and useful answer. Now just hope that the OP uses windows. –  Hennes Apr 27 '13 at 14:07
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Please familiarize yourself with our formatting. –  slhck Apr 27 '13 at 14:42
    
++ for fast and simple answer. –  Buscar웃 Apr 27 '13 at 16:08

For Windows, if the driver of your WLAN card does not support hosted network, Connectify is a way around.

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