See Marcus Muellier's reply of earlier.
You need to configure your VM ethernet in bridge, rather than NAT configuration. VMWare NAT re-orders UDP datagrams, which is fatal for a number of applications. On 2015-07-09 10:55, George Hadley wrote: > UHD version is 3.008.004. > > Looking at the connection properties in the Windows Network/Sharing Center, I > see "Realtek PCIe GBE Family Controller" listed as the ethernet controller. > Looking at the network settings through the VM, the adapter type "Intel > PRO/1000 MT Desktop (82540EM) is listed. > > Thank you for crossposting and your continued assistance. > George > > On 7/9/2015 10:19 AM, mle...@ripnet.com wrote: > > What version of UHD are you using? > > Any idea what ethernet controller is used on that dual-port card? > > You'd have to go into windows configuration to determine this, since I think > that 'lspci' on the VM side will see some kind of emulated network card. > > I've taken the liberty of copying this to the usrp-users list, since this is > more USRP-centric, than GnuRadio-centric. > > On 2015-07-09 09:21, George Hadley wrote: I am indeed running inside a VM > presently. Details below: > > Hardware: > USRP N210 (2x) connected to dual-port gigabit ethernet card: > http://www.newegg.com/Product/Product.aspx?Item=N82E16833166096 [2] > > Software: > Windows 7 host OS > VirtualBox VM running Mint Linux 17.1 (Mate Desktop edition) > Network settings: > + Adapter enabled and attached to NAT > + No port forwarding settings defined > > It may be noteworthy that the receive operation of the USRPs works as > expected. Only transmit doesn't appear to be working properly. > > Thanks, > George > > On 7/9/2015 9:11 AM, mle...@ripnet.com wrote: > > This is usually due to your network subsystem re-ordering packets, which is > never supposed to happen but certain > 1GiGe interfaces, particularly USB ones, do this quite a bit. > > Are you running inside a VM? > > What kind of network interface do you have? > > On 2015-07-09 09:09, George Hadley wrote: > > Hello, > > I'm working on developing some gnuradio exercises, some of which involve > using USRP N210 devices as transmitters. When I attempt to run the related > flowgraphs, I get a stream of sequence errors (S) in the GRC log window. > Attached are a pair of GRC flowgraphs in which I am getting this error. I > have tried installing the latest images to the USRPs and updating to the > latest version of gnuradio available on the github master branch. Can > somebody please point me to what I'm doing wrong? I've searched around on the > topic for quite awhile, to no avail. > > Thanks, > George > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio [1] -- George Hadley ECE Lab Coordinator Purdue University -- George Hadley ECE Lab Coordinator Purdue University Links: ------ [1] https://lists.gnu.org/mailman/listinfo/discuss-gnuradio [2] http://www.newegg.com/Product/Product.aspx?Item=N82E16833166096
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