Apologies for responding to my own post, but here some more evidence
of USB tethering failure, On 28/11/2013 15:56, Ron Leach wrote:
Expected behaviour:
- Plug in SGS2 to laptop USB port, set USB tethering
- See a new interface listed in wicd
After further testing, this would never be possible in wicd.
wicd only 'looks' at whatever 'two' interfaces (wicd is limited to 2)
are set in its 'preferences' tab. On most laptops - such as this I am
using - those settings are (and will likely always be) eth0 and wlan0.
wicd can never 'see' usb0 if eth0 and wlan0 are also present.
Not knowing much about the networking setup in the machine,
I've done some more trials. After disconnecting the laptop from the
existing LAN, plugging in SGS2, setting USB tethering, and with the
SGS2 in coverage and sustaining a data connection to the mobile
network, I tried these commands:
# ifdown usb0
replies with
"usb0 not configured"
# ifup usb0
replies with
"Ignoring unknown interface usb0=usb0."
#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.]"
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.
As I mentioned, I know relatively little about the networking process
in Linux or Debian, and would be grateful for any suggestions. I
wondered about defining 'usb0' somewhere, maybe in
/etc/network/interfaces,
but I really have no idea what to set as a configuration. On the
other hand, Wheezy seems to think it has some kind of config, already,
as posted just above, so I am not at all sure.
regards, Ron
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