Re: [Discuss-gnuradio] tunnel.py command not working.

Hi,

Yes now it works but can not able to ping the Machines. I am using RFX400 daughter card and set 192.168.200.1 and 192.168.200.2 respectively on machine A and B.

On machine A:

  
  # sudo ./tunnel.py --freq 423.0M --bitrate 500k -A TX/RX -v
  # # in another window on A,
  # ifconfig gr0 192.168.200.1


On machine B:

  
  # sudo ./tunnel.py --freq 423.0M --bitrate 500k -A TX/RX -v
  # # in another window on B
  # ifconfig gr0 192.168.200.2

I got the following outputs

ON MACHINE A after setting up the virtual ethernet by sudo ifconfig gr0 192.168.200.1:

address@hidden:~/gnuradio/gnuradio/gr-digital/examples/narrowba$ sudo ./tunnel.py --freq 423.0M --bitrate 500k -A TX/RX -v

linux; GNU C++ version 4.6.3; Boost_104800; UHD_003.005.001-29-g3cb515f7

>>> gr_fir_fff: using SSE

bits per symbol = 1

Gaussian filter bt = 0.35

-- Opening a USRP1 device...

-- Using FPGA clock rate of 64.000000MHz...

No gain specified.

Setting gain to 32.500000 (from [0.000000, 65.000000])

UHD Receiver:

UHD Args:

Freq: 423MHz

Gain: 32.500000 dB

Sample Rate: 1Msps

Antenna: TX/RX

Spec: None

No gain specified.

Setting gain to -10.000000 (from [-20.000000, 0.000000])

UHD Transmitter:

Args:

Freq: 423MHz

Gain: -10.000000 dB

Sample Rate: 1Msps

Antenna: TX/RX

Subdev Sec: None

bits per symbol = 1

Gaussian filter bt = 0.35

Using Volk machine: ssse3_32

Tx amplitude 0.25

modulation: gmsk_mod

bitrate: 500kb/s

samples/symbol: 2.0000

Differential: False

bits per symbol = 1

M&M clock recovery omega = 2.000000

M&M clock recovery gain mu = 0.175000

M&M clock recovery mu = 0.500000

M&M clock recovery omega rel. limit = 0.005000

frequency error = 0.000000

Receive Path:

modulation: gmsk_demod

bitrate: 500kb/s

samples/symbol: 2.0000

Differential: False

modulation: gmsk

freq: 423M

bitrate: 500kb/sec

samples/symbol: 2

Carrier sense threshold: 30 dB

Allocated virtual ethernet interface: gr0

You must now use ifconfig to set its IP address. E.g.,

$ sudo ifconfig gr0 192.168.200.1

Be sure to use a different address in the same subnet for each machine.

UUTx: len(payload) = 90

Tx: len(payload) = 54

Rx: ok = True len(payload) = 90

UTx: len(payload) = 81

URx: ok = True len(payload) = 54

Tx: len(payload) = 299

Tx: len(payload) = 202

Rx: ok = True len(payload) = 81

Rx: ok = True len(payload) = 299

UUTx: len(payload) = 299

Rx: ok = False len(payload) = 299

UUTx: len(payload) = 299

Rx: ok = False len(payload) = 299

URx: ok = False len(payload) = 101

Tx: len(payload) = 78

UUTx: len(payload) = 275

Rx: ok = False len(payload) = 275

UUTx: len(payload) = 81

UUTx: len(payload) = 202

URx: ok = True len(payload) = 81

UTx: len(payload) = 70

Tx: len(payload) = 110

Rx: ok = True len(payload) = 70

UUTx: len(payload) = 101

Rx: ok = True len(payload) = 110

Tx: len(payload) = 377

Tx: len(payload) = 192

Tx: len(payload) = 105

Tx: len(payload) = 222

Rx: ok = True len(payload) = 101

URx: ok = True len(payload) = 377

Rx: ok = True len(payload) = 192

Rx: ok = True len(payload) = 105

UTx: len(payload) = 236

URx: ok = True len(payload) = 222

Rx: ok = False len(payload) = 236

UTx: len(payload) = 377

Tx: len(payload) = 192

Rx: ok = True len(payload) = 377

URx: ok = False len(payload) = 192

UTx: len(payload) = 377

Tx: len(payload) = 192

URx: ok = True len(payload) = 377

Rx: ok = False len(payload) = 192

UTx: len(payload) = 353

Tx: len(payload) = 180

Rx: ok = True len(payload) = 353

Rx: ok = False len(payload) = 180

UUTx: len(payload) = 101

UUTx: len(payload) = 222

Rx: ok = True len(payload) = 101

UUTx: len(payload) = 81

UUTx: len(payload) = 319

Rx: ok = False len(payload) = 319

UUTx: len(payload) = 353

Tx: len(payload) = 152

Rx: ok = True len(payload) = 353

Rx: ok = False len(payload) = 152

UTx: len(payload) = 90

UUTx: len(payload) = 303

Rx: ok = False len(payload) = 303

UUTx: len(payload) = 54

UUTx: len(payload) = 101

UUTx: len(payload) = 323

Rx: ok = False len(payload) = 323

UUTx: len(payload) = 353

Tx: len(payload) = 180

Rx: ok = True len(payload) = 353

Tx: len(payload) = 70

Rx: ok = False len(payload) = 180

UUTx: len(payload) = 81

UUTx: len(payload) = 101

UUTx: len(payload) = 70

UUTx: len(payload) = 81

UUTx: len(payload) = 101

FROM the MACHINE B after setting virtual ethernet sudo ifconfig gr0 192.168.200.2

address@hidden:~/gnuradio/gr-digital/examples/narrowband$ sudo ./tunnel.py --freq 423.0M --bitrate 500k -A TX/RX -v
linux; GNU C++ version 4.6.1; Boost_104601; UHD_003.005.001-25-ge134b863

>>> gr_fir_fff: using SSE
bits per symbol = 1
Gaussian filter bt = 0.35
-- Opening a USRP1 device...
-- Using FPGA clock rate of 64.000000MHz...

No gain specified.
Setting gain to 32.500000 (from [0.000000, 65.000000])

UHD Receiver:
UHD Args:
Freq:        423MHz
Gain:        32.500000 dB
Sample Rate: 1Msps
Antenna:     TX/RX
Spec:        None

No gain specified.
Setting gain to -10.000000 (from [-20.000000, 0.000000])

UHD Transmitter:
Args:
Freq:        423MHz
Gain:        -10.000000 dB
Sample Rate: 1Msps
Antenna:     TX/RX
Subdev Sec: None
bits per symbol = 1
Gaussian filter bt = 0.35
Using Volk machine: sse4_1_32
Tx amplitude     0.25
modulation:      gmsk_mod
bitrate:         500kb/s
samples/symbol: 2.0000
Differential:    False
bits per symbol = 1
M&M clock recovery omega = 2.000000
M&M clock recovery gain mu = 0.175000
M&M clock recovery mu = 0.500000
M&M clock recovery omega rel. limit = 0.005000
frequency error = 0.000000

Receive Path:
modulation:      gmsk_demod
bitrate:         500kb/s
samples/symbol: 2.0000
Differential:    False
modulation:     gmsk
freq:           423M
bitrate:        500kb/sec
samples/symbol:   2
Carrier sense threshold: 30 dB

Allocated virtual ethernet interface: gr0
You must now use ifconfig to set its IP address. E.g.,

$ sudo ifconfig gr0 192.168.200.1

Be sure to use a different address in the same subnet for each machine.

UUTx: len(payload) =   54
Tx: len(payload) =   90
UUTx: len(payload) =   81
Rx: ok = True len(payload) =   54
Rx: ok = True len(payload) =   90
UUTx: len(payload) = 296
Rx: ok = False len(payload) = 296
UTx: len(payload) = 200
UTx: len(payload) =   78
Rx: ok = True len(payload) = 200
UUTx: len(payload) = 296
Rx: ok = False len(payload) = 296
UUTx: len(payload) = 296
Rx: ok = False len(payload) = 296
UUTx: len(payload) = 272
Rx: ok = False len(payload) = 272
UUTx: len(payload) =   81
UUTx: len(payload) =   70
Tx: len(payload) = 110
Rx: ok = True len(payload) =   70
UUTx: len(payload) = 101
Rx: ok = True len(payload) = 110
UUTx: len(payload) = 288
Rx: ok = True len(payload) = 101
Rx: ok = False len(payload) = 288
UTx: len(payload) = 374
Tx: len(payload) = 191
UTx: len(payload) =   88
Rx: ok = True len(payload) = 374
Rx: ok = True len(payload) = 191
UTx: len(payload) = 220
Rx: ok = True len(payload) =   88
UUTx: len(payload) = 374
Tx: len(payload) = 191
Rx: ok = True len(payload) = 374
Rx: ok = False len(payload) = 191
UTx: len(payload) = 374
Tx: len(payload) = 191
Tx: len(payload) =   81
URx: ok = True len(payload) = 374
Rx: ok = False len(payload) = 191
Tx: len(payload) = 256
URx: ok = True len(payload) =   81
Rx: ok = False len(payload) = 256
UTx: len(payload) = 350
Tx: len(payload) = 179
Rx: ok = True len(payload) = 350
URx: ok = False len(payload) = 179
UTx: len(payload) = 101
UUTx: len(payload) = 320
Rx: ok = False len(payload) = 320
UUTx: len(payload) =   81
UUTx: len(payload) = 350
Tx: len(payload) = 179
Rx: ok = True len(payload) = 350
Rx: ok = False len(payload) = 179
UTx: len(payload) = 288
Rx: ok = False len(payload) = 288
UUTx: len(payload) = 300
Rx: ok = False len(payload) = 300
UTx: len(payload) = 101
UUTx: len(payload) = 320
URx: ok = False len(payload) = 320
UTx: len(payload) =   70
UUTx: len(payload) = 350
Tx: len(payload) = 179
Rx: ok = True len(payload) = 350
Rx: ok = False len(payload) = 179
UUTx: len(payload) =   81
UUTx: len(payload) = 101
UTx: len(payload) =   54
Rx: ok = True len(payload) = 101
UUTx: len(payload) =   70
UUTx: len(payload) =   90
UUTx: len(payload) =   81
UUTx: len(payload) = 101
UUTx: len(payload) =   42
UUTx: len(payload) =   42
UUTx: len(payload) =   42
UUTx: len(payload) =   42
UUTx: len(payload) =   42
UUTx: len(payload) =   42
UUTx: len(payload) =   42
UUTx: len(payload) =   42
UUTx: len(payload) =   42
UUTx: len(payload) =   42
UUTx: len(payload) =   42
UUTx: len(payload) =   42
UUTx: len(payload) =   42
UUTx: len(payload) =   42
UUTx: len(payload) =   81
UUTx: len(payload) =   42
UUTx: len(payload) = 101
Tx: len(payload) =   42
URx: ok = True len(payload) = 101
UTx: len(payload) =   42
UUTx: len(payload) =   42
UUTx: len(payload) =   42
UUTx: len(payload) =   42
UUTx: len(payload) =   42
UUTx: len(payload) =   42
UUTx: len(payload) =   42
UUTx: len(payload) =   42
UUTx: len(payload) =   42
UUTx: len(payload) =   42
UUTx: len(payload) =   42
UUTx: len(payload) =   42
UTx: len(payload) =   42
UUTx: len(payload) =   42
UU

But i am not able to ping the two machines. The settings and parameters used looks correct but ping does not work on either.

Berst Regards,
SAJJAD SAFDAR

From: Andre Puschmann <address@hidden>
To: Sajjad Safdar <address@hidden>
Sent: Wednesday, February 27, 2013 4:34 PM
Subject: Re: tunnel.py command not working.

On 02/26/2013 06:55 PM, Sajjad Safdar wrote:
> HI,
> I am using tunnel.py command to setup a TCP/IP link between two usrp1.
> When i try to use the command , i get this error
>
> ./tunnel.py
> linux; GNU C++ version 4.6.3; Boost_104800; UHD_003.005.001-29-g3cb515f7
>
> Traceback (most recent call last):
> File "./tunnel.py", line 295, in <module>
> main()
> File "./tunnel.py", line 241, in main
> (tun_fd, tun_ifname) = open_tun_interface(options.tun_device_filename)
> File "./tunnel.py", line 79, in open_tun_interface
> ifs = ioctl(tun, TUNSETIFF, struct.pack("16sH", "gr%d", mode))
> IOError: [Errno 1] Operation not permitted

Try running it with root rights, i.e. "sudo ./tunnel.py". Also make sure
that the device actually exists, run "ifconfig tun0".

-Andre

From:	Sajjad Safdar
Subject:	Re: [Discuss-gnuradio] tunnel.py command not working.
Date:	Wed, 27 Feb 2013 06:28:02 -0800 (PST)