I definitely should have mentioned that initially. Yes it works
perfectly when directly connected. But I would like to configure the
eth interface to have two addresses, because we're on a campus, one for
network communications to the outside world, one for the USRP, and use a
switch to bring it all together.
Both the host and the switch support 1 GigE.
On 01/22/2013 10:36 AM, mle...@ripnet.com wrote:
On 22 Jan 2013 13:29, Justyn Bell wrote:
Hello list,
Hopefully this is an appropriate place to ask this question:
I'm trying to connect a host machine to a switch in which a USRP N210
is also connected. I have configured the host machine's IP to be
static on the 192.168.10.0/24 subnet, and can successfully ping the
N210 at 192.168.10.2. However, when I try to do a "uhd_usrp_probe",
the command simply returns the following:
linux; GNU C++ version 4.6.3; Boost_104601; UHD_003.004.002-152-gdb8f128e
Error: Connection refused
I have also tried to do "uhd_usrp_probe --args="addr=192.168.10.2" in
which case it returns the following:
linux; GNU C++ version 4.6.3; Boost_104601; UHD_003.004.002-152-gdb8f128e
Error: LookupError: KeyError: No devices found for ----->
Device Address:
addr: 192.168.10.2
My first thought was that it is some kind of firewall issue, so I
issued a "sudo ufw disable", but the results didn't change (when
trying to probe, it returns the above errors, I can still ping).
According to
http://files.ettus.com/uhd_docs/manual/html/usrp2.html#setup-networking,
"When the IP address is not specified, the device discovery
broadcasts UDP packets from each ethernet interface." Which implies
that broadcast UDP packets are not sent when an IP /is/ specified
(which is what I did in my second attempt to probe the USRP), so I
don't think it's a firewall issue.
The switch is a Netgear GS608 which I don't think has "broadcast
storm" control, anyway.
Thanks for any help on the issue.
--
Justyn
Simple test. Does it all work when directly connected? (Or are you
using a switch because your host doesn't support 1GiGe?)
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--
Justyn
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