Hi,
I am using Galaxy S2, running on andriod 4.0.1, kernel 3.0.15. I was searching for various ways to usb tether my mobile internet, as fedora doesn't support much of WPA encrypted wifi hotspots.
Whenever i connect the phone to MTP (Media Transfer Protocol) mode, I get an option of Mobile Broadband (not connected), in the KNetworkManager.
On switching on the usb tether option from the settings, the Mobile Broadband option changes to "Networking Interface (not connected)" and on switching off the tethering options, i again get back the Mobile Broadband option, but i do not find any way to connect it. I have tried a 3rd party software, easy tether, but somehow, i couldn't get it to work as well.
On the other hand, i tried the same in ubuntu 13.04 on unity, and the usb internet works perfectly on switching usb tethering option on the phone. Can anyone please help me.
For screenshots :
http://2.bp.blogspot.com/-amoVQywJOLc/U ... nager2.png
that is the screenshot of when the phone is connected via MTP
http://1.bp.blogspot.com/-WoWWsmLdcH4/U ... nager1.png
that is the screenshot of when the phone is connected via USB tethering.
for ifconfig, i get this result:
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 0 (Local Loopback)
RX packets 606100 bytes 45507137 (43.3 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 606100 bytes 45507137 (43.3 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

p4p1: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
ether c8:0a:a9:8b:93:ce txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 16

wlan0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.43.83 netmask 255.255.255.0 broadcast 192.168.43.255
inet6 fe80::226:c7ff:fe4f:3606 prefixlen 64 scopeid 0x20<link>
ether 00:26:c7:4f:36:06 txqueuelen 1000 (Ethernet)
RX packets 414221 bytes 534600679 (509.8 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 273659 bytes 36684254 (34.9 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

for dmesg, i get this output: http://pastebin.com/k9WUZwb5

sayantand wrote:Hi,
I am using Galaxy S2, running on andriod 4.0.1, kernel 3.0.15. I was searching for various ways to usb tether my mobile internet, as fedora doesn't support much of WPA encrypted wifi hotspots.

WPA encryption is standard in all wifi hotspots, I have been using it for years and I do not see why a particular distribution (Fedora) would not support it. By the way, mtp has nothing to do with usb tethering.

Answering your usb tethering question: when in "Networking Interface (not connected)" mode you must create a wired connection and restrict it to the usb0 network interface (or whatever interface name systemd assigned to your phone's usb network interface). When I tried the mobile broadband mode with my Galaxy S2 it did not work. By that time I had to compile a couple of drivers (kernel modules) in the Linux kernel I use to make the usb tethering work (the drivers are in the vanilla kernel, so you must have them compiled already). Maybe the mobile broadband mode works now with my phone but I have not tested it.