Re: Internet sharing over multiple interfaces

On Sun, 2010-05-30 at 18:44 +0200, Frederik Nnaji wrote:
> Danke, Lutz!
> On Fri, May 28, 2010 at 11:19, lutz <lutz reinhardt tu-bs de> wrote:
>         > yeah, i'm having a hard time trying to share my internet
>         connection.
>         > I have mobile broadband, want to share it via LAN, no
>         success..
>         >
>         > what would it take to pull this off with a couple of clicks
>         and NM's
>         > help?
>         I have difficulties understanding your problem, because of
>         some missing
>         English experience, so here is the answer from what I
>         understood.
>         If you want to make your mobile Internet connection available
>         for
>         computers, which are connected to you via LAN, you have to go
>         to the
>         settings of your LAN adapter in NM and go to its IPv4 tab.
>         There you
>         change  the method from DHCP or anything else to "Shared
>         to ...". Then
>         will be the computer which are connected to your LAN card be
>         able to get
>         an IP via DHCP.
> i will try this out again, when i get back home later on.
> Perhaps i was a little forgetful, when i said LAN, my greatest
> difficulties started with trying tethering via Wireless LAN.
> My mobile phone does this in 4 clicks / touches, including
> installation of the necessary software.
> How many interactions would NM ask of me before this becomes active?

To start sharing your primary internet connection via WiFi, it takes 3

Click on the applet
Click on "Create New Wireless Network..."
Fill in the details
Click on "Create..."

and as long as your driver doesn't suck (they have often sucked in the
past) NM will start up a new Ad-Hoc wifi network, assign your machine a
10.x.x.x address on that wifi net, and start NAT-ing anything that
connects to that wifi net to your primary internet connection.

The primary internet connection can be anything, ethernet, 3G, or even
another wifi network if you  have two wifi cards plugged in.  Remember,
if you have two ethernet cards, or two wifi cards, make sure to fill in
the "MAC Address" part of the connection editor to ensure that the
connection profile you're creating is only used with that specific
hardware.  This is only necessary if you have more than one ethernet or
more than one wifi device though.


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