Re: [Discuss-gnuradio] TUN/TAP PDU not working

On 06/22/2017 05:24 AM, Derek Kozel wrote:
> Hello Cinaed,
>
> I have no experience with the TUN/TAP code or setup, but the B210 is an
> SDR which can only be connected to the host using USB.

Did you try it?

>There is no IP
> address associated with it.

Probably because you haven't given it one.

I connect my Beagle Bone to my laptop over a USB cable with 2 IP
addresses - on IP for my laptop and one IP for the Beagle Bone.

The USB cable also provides power for the Beagle Bone.

Then I use ssh to connect to the Beagle Bone.

A single tap IP address is a bridge to nowhere.

-- Cinaed



> https://www.ettus.com/product/details/UB210-KIT
>
> Regards,
> Derek
>
> On Thu, Jun 22, 2017 at 10:29 AM, Cinaed Simson <cinaed.simson@gmail.com
> <mailto:cinaed.simson@gmail.com>> wrote:
>
> On 06/17/2017 04:26 AM, mansourabadi.mojtaba@gmail.com
> <mailto:mansourabadi.mojtaba@gmail.com> wrote:
> > Hi Cinaed,
> >
> > Sorry to miss the previous email.
> >
> > I need to clarify that B210 USRP is connected to the PC though USB cable. That's why my Ethernet cards are disabled.
> >
> > Meanwhile I have been trying different things and I noticed the followings:
> >
> > 1- Packet Encoder/Decoder blocks work fine with GMSK modulation scheme. But with other modulation like QAM and PSK, it seems to be less efficient.
> >
> > 2- I can receive any packet delivered to the virtual IP address I create using GNURadio. I also can print them to the console in GNURadio.
> >
> > 3- I can easily send/receive any form of information using GMSK Scheme along with packet encoder/decoder from one USRP to another>
> > 4- but whatever I do I can't put the received packets from virtual IP address though GMSK and packet en/decoder.
>
> Try setting the IP address of your USRP in the properties by replacing
>
> Device Address="name=USRP_1"
>
> with
>
> Device Address="addr=192.168.200.1"
>
> -- Cinaed
>
> >
> > Sincerely,
> > Mansour.
> >
> >> On 17 Jun 2017, at 02:46, Cinaed Simson <cinaed.simson@gmail.com
> <mailto:cinaed.simson@gmail.com>> wrote:
> >>
> >> Incidentally, all you need is a $20-$30 Ethernet switch with 5-8
> ports,
> >> and 3 CAT-6 Ethernet cables - twice as long as you think might need.
> >>
> >> Then plug 1 one cable into each of the 3 device and plug the
> other end
> >> the of all the cables into the switch.
> >>
> >> Configure them as below and you should be able to ping all the
> devices
> >> from either the desktop or the laptop.
> >>
> >> -- Cinaed
> >>
> >>
> >>> On 06/15/2017 02:49 PM, Cinaed Simson wrote:
> >>>
> >>> I'll assume they're connected correctly.
> >>>
> >>> On the both PC1 and PC2, type
> >>>
> >>> ip tuntap del dev tap0 mode tap
> >>>
> >>> On PC1, type
> >>>
> >>> ifconfig enp0s31f6 inet 192.168.200.1 netmask 255.255.255.0
> >>> ifconfig enp0s31f6 up
> >>>
> >>> On PC2, type
> >>>
> >>> ifconfig enp0s31f6 inet 192.168.200.3 netmask 255.255.255.0
> >>> ifconfig enp0s31f6 up
> >>>
> >>> Then on either PC, ping the other one. Try pinging the USRP. The
> pinging
> >>> shoud work - unless you have more than one Ethernet card and you
> plugged
> >>> the cable into the wrong card.
> >>>
> >>> The idea is a tap relies on the existing Ethernet framing (and hence
> >>> routing) so if the machines are connected correctly then configuring
> >>> their Ethernet cards should provide the necessary infrastructure.
> >>>
> >>> Also, you need to go the USRP mailing list and ask them how to
> change
> >>> the IP address of the B210 - it's something you should know how
> to do.
> >>>
> >>> In general, the tap address on the B210 should have the same network
> >>> address as your PC.
> >>>
> >>> The network address of PC1 is 192.168.200.0 and the host address
> >>> 192.168.200.1.
> >>>
> >>> -- Cinaed
> >>>
> >>>> _______________________________________________
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> >>>>
> >>>
> >>
> >>
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