Re: [Discuss-gnuradio] uhd_find_devices error

[Josh Blum]

When you specify the address it works, the other methods do not. This is 
likely due to a firewall blocking broadcast packet:

http://www.ettus.com/uhd_docs/manual/html/usrp_nxxx.html#debugging-networking-problems

-Josh

On 11/23/2010 03:00 PM, devin kelly wrote:
> Hello,
>
> I have a strange problem with uhd_find_devices.  I can do
>
> [dkelly uhd]+master$ uhd_find_devices --args="addr=192.168.10.2"
> linux; GNU C++ version 4.4.5; Boost_104000; UHD_20101122.202304.0c147c9
>
> --------------------------------------------------
> -- UHD Device 0
> --------------------------------------------------
> Device Address:
>     type: usrp2
>     addr: 192.168.10.2
>     name: dk-usrp2
>     serial: 00:50:c2:85:30:52
>
> fine, as you can see.   But everything else I try fails.  Note I have a
> USRP1 too here.
>
> [dkelly uhd]+master$ sudo uhd_find_devices --args="type=usrp2"
> linux; GNU C++ version 4.4.5; Boost_104000; UHD_20101122.202304.0c147c9
>
> No UHD Devices Found
>
>            [dkelly uhd]+master$ sudo uhd_find_devices --args="type=usrp1"
> linux; GNU C++ version 4.4.5; Boost_104000; UHD_20101122.202304.0c147c9
>
> No UHD Devices Found
> [dkelly uhd]+master$ sudo uhd_find_devices --args="serial=12345"
> linux; GNU C++ version 4.4.5; Boost_104000; UHD_20101122.202304.0c147c9
>
> No UHD Devices Found
>
> I've noticed when when I use the addr argument that I see in wireshark that
> exactly 180 packets are communicated between my pc andthe usrp2.  I don't
> see any packets on either interface for any other argument.
>
> Here is my ifconfig:
> eth3    Link encap:Ethernet  HWaddr 00:22:3f:f6:36:40
>            inet6 addr: fe80::222:3fff:fef6:3640/64 Scope:Link
>            UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>            RX packets:17375493 errors:0 dropped:0 overruns:0 frame:0
>            TX packets:6397200 errors:0 dropped:0 overruns:0 carrier:0
>            collisions:0 txqueuelen:1000
>            RX bytes:4261877192 (4.2 GB)  TX bytes:499316331 (499.3 MB)
>            Interrupt:16 Base address:0x6700
>
> eth3:0 Link encap:Ethernet  HWaddr 00:22:3f:f6:36:40
>            inet addr:192.168.10.1  Bcast:0.0.0.0  Mask:255.255.255.0
>            UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>            Interrupt:16 Base address:0x6700
>
> Does anyone have any ideas for for why only the addr argument works?  I'd
> like to use my USRP1 with the UHD.
>
> Also, while I'm here, do I have to update anything (like reflashing the
> eeprom) on my USRP1 for it to work with the UHD?
>
> Thanks for any help,
> Devin
>
>
>
>
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