Re: debian xfce network tethering an SGS2

[Reco <recoverym4n@gmail.com>]

 Hi.

On Fri, 29 Nov 2013 19:45:50 +0000
Ron Leach <ronleach@tesco.net> wrote:

> After further testing, this would never be possible in wicd.

Why bother yourself with an inferior network configurator (wicd), then
you have superior one (ifupdown) already?


> # ifup usb0
> replies with
> "Ignoring unknown interface usb0=usb0."

That's only means that you lack usb0 definition
in /etc/network/interfaces.


> #ifconfig usb0
> replies with
> "usb0"
> and a table of
> "[Ethernet type, a MAC address, MTU 1500, and several lines of tx and 
> rx parameters, all zero.]"

And that means you've done the easy part of configuration of tethering.
You plug the phone - kernel provides you an unconfigured network
interface.
The hard part is to setup an appropriate routing to the outside world on
your phone.


> In my experience, it would seem that USB tethering, at least for the 
> first time, is not possible just by plugging it in to Wheezy/XFCE, and 
> doing
> ifup usb0
> 
> Something else perhaps must also be needed.  Maybe something else 
> needs setting up.

You need to configure /etc/network/interfaces. Something along the
lines of (assuming you've already setup DHCP server on your phone):

allow-hotplug usb0
iface usb0 inet dhcp

or something along the lines of (if you don't):

allow-hotplug usb0
iface usb0 inet static
    address x.x.x.x
    netmask x.x.x.x
    gateway x.x.x.x
    dns-nameservers x.x.x.x

or, if you're really need it (ipv6):

allow-hotplug usb0
iface usb0 inet6 static
    address x:x:x:x:x:x:x:x
    netmask x


'allow-hotplug' stanza should tell udev to configure usb0 interface
once you've plugged your phone, and deconfigure it once you'll unplug
it.

Reco