USRP2 Ethernet link Issues

Hi Everyone,

I am currently trying to play around with the USRP2, but am not even
able to
connect to it.

I have the latest UHD and GNURadio installed from git running on Ubuntu
I’am connecting the USRP directly to the Gigabit Interface on my

I used the Firmware/FPGA image from

When I switch on the USRP2, all the LED’s light up and then LED D & F
on. But,
-> None of the lights on the ethernet port light up.

-> uhd_find_devices says:
linux; GNU C++ version 4.4.3; Boost_104000;

No UHD Devices Found

-> find_usrps says
No USRP2 found.

-> ethtool eth0 says
Settings for eth0:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Advertised pause frame use: No
Advertised auto-negotiation: Yes
Link partner advertised link modes: Not reported
Link partner advertised pause frame use: No
Link partner advertised auto-negotiation: No
Speed: Unknown!
Duplex: Unknown! (255)
Port: Twisted Pair
Transceiver: internal
Auto-negotiation: on
MDI-X: Unknown
Supports Wake-on: g
Wake-on: d
Link detected: no

-> lspci | grep Ethernet says
03:00.0 Ethernet controller: Broadcom Corporation NetXtreme II BCM5708
Gigabit Ethernet (rev 12)
0a:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5721
Ethernet PCI Express (rev 21)

I have two gigabit interfaces, i have tried to connect on both with the

-> When I use wireshark to see if any packets are actually sent, I dont
anything going between the USRP2 and my computer.

I have set a static ip ( too.
I have tried different ethernet cables, made sure no pins are broken in
either of the ethernet ports.

I’am not sure what I’am doing wrong. I have ferreted the mailing-lists
similar problems but couldn’t find any solution. Any help will be
appreciated at this point.


On 03/30/2011 06:38 PM, Praveen Vikram wrote:

Hi Everyone,

I am currently trying to play around with the USRP2, but am not even
able to connect to it.

another thing worth checking might be firewall issues and if ping works:


Sorry for the late reply, just got into my lab.

When I start the USRP2, This is what happens:
F lights up first,
then all the LEDS flash
and D and F stay on.

I tried burning txrx_raw_eth_20100608.bin/u2_rev3-20100603.bin as my
on the SD card and even that does the same thing.
I’am using the Kingston 2gb SD card I got with the USRP2.


Thanks again Josh.

I re-flashed the the SD card with the images from:
downloaded the corresponding .deb file and installed it using dpkg.
Set the UHD_IMAGE_PATH to /usr/share/uhd/images (where the .deb file
installed the bin files to)

Now when I turn on the USRP2, the LED’s light up in the same sequence as
the video, with one change.
The green light on the left of the Ethernet lights up faintly before the
sequence and goes out.

Still no messages from the USRP2 on wireshark and am not able to find
UHD devices either.

but when I typed dmesg on my computer after opening up wireshark it
[10100.838314] dumpcap uses obsolete (PF_INET,SOCK_PACKET)
[10113.980644] device eth0 entered promiscuous mode
[10309.030910] bnx2: eth0 NIC Copper Link is Down

Is there something wrong with my gigabit interface driver?
or Is my USRP2 bricked (is this possible)?

Thanks again for the help,

Hello,I can not ping usrp N210 when I config my PC with,
Now I have installed gnuradio but not udh, and I also want to know what
is udh for?
Thank you very much!!

On 03/31/2011 09:29 AM, Praveen Vikram wrote:

This may help: when using the images found here:

This is how the LEDs should light up after power cycle when using the
UHD images on your USRP2. Notice at the very end of the video how the
ethernet link light comes on (very faint LED on the left).

Hope that helps,

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