Configuring extras:tun/tap on ubuntu 12.04

alcina · July 20, 2013, 1:23am

Hi
I have a problem with configuring the gr0 interface for gnuradio on
ubuntu 12.04.

The command
$sudo ifconfig gr0 192.168.200.1

does not work and return back error of

SIOCSIFADDR: No such device
gr0: ERROR while getting interface flags: No such device

I have tried a number of methods from the linux community but non of
them
works.

Does any one in gnuradio community have any clue about it.

Regards

GNU_radio · July 20, 2013, 6:37am

Hi,

On 07/20/2013 01:22 AM, GNU radio wrote:

gr0: ERROR while getting interface flags: No such device

I have tried a number of methods from the linux community but non of
them works.

Does any one in gnuradio community have any clue about it.

This commands work for me:

github.com

bastibl/gr-ieee802-11/blob/maint-3.8/apps/rx_demo.sh#L22


      
          	echo "${FILE}: file already exists"
          	if ! [ -p ${FILE} ]
          	then
          		echo "ERROR: ${FILE} exists and is not a FIFO"
          		exit 1
          	fi
          else
          	echo "creating fifo: ${FILE}"
          	mkfifo ${FILE}
          fi
          
          

          
### create tap interface
          if [[ `ifconfig -a | grep tap0 | wc -l` -eq 0 ]]
          then
          	sudo ip tuntap add dev tap0 user ${USER} mode tap
          fi
          
          
### reconfigure it in any case, just to be sure it's up
          sudo ifconfig tap0 down
          sudo ifconfig tap0 hw ether 12:34:56:78:90:ab

Best,
Bastian

–
Dipl.-Inform. Bastian B.
Institute of Computer Science
University of Innsbruck, Austria
Phone: +43 512 507-53288 / Fax: -53079
http://ccs.uibk.ac.at/~bloessl/