[USRP-users] Problem accessing E310 via network

James Bernard xproject128 at gmail.com
Sat Mar 26 23:03:35 EDT 2016

Hi all,

I'm just getting started with the USRP radios so please forgive me if I'm
missing something obvious. I've searched the archives and read through the
documentation, and I'm not able to get any results from uhd_usrp_probe via
the network.

bash$ uhd_usrp_probe --args addr=
Mac OS; Clang version 7.0.0 (clang-700.0.72); Boost_105900;

Error: LookupError: KeyError: No devices found for ----->
Device Address:

I can both ping and login to it via ssh:

bash$ ssh root at uhd_usrp_probe
linux; GNU C++ version 4.9.2; Boost_105700; UHD_003.009.002-0-unknown
|       Device: E-Series Device

I ran a tcpdump while running uhd_usrp_probe and I'm getting port
unreachable messages:

22:55:37.797515 IP > UDP, length 36
22:55:37.798390 IP > ICMP udp port
49152 unreachable, length 72
22:55:37.900204 IP > UDP, length 6
22:55:37.901661 IP > ICMP udp port
21761 unreachable, length 42
22:55:37.955103 IP > UDP, length 6
22:55:37.956050 IP > ICMP udp port
21761 unreachable, length 42
22:55:38.008176 IP > UDP, length 16
22:55:38.009017 IP > ICMP udp port
49152 unreachable, length 52

Logging into the E310 I can confirm that nothing is listening on udp/49152.
I'm running UHD_003.009.003-MacPorts-Release, which is documented as
supporting the E310.

I can use X11 forwarding and run uhd_fft for example, but I can't find what
daemon on the E310 is responsible for responding to the UHD API.

- James
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