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

[mansourabadi . mojtaba]

Hi Cinaed,

Thanks for your help.
I am away at the moment and can't try your solution.
I'll be back this weekend and let you know if the method is successful.

Sincerely,
Mansour.

> On 22 Jun 2017, at 20:28, Cinaed Simson <address@hidden> wrote:
> 
>> 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 <address@hidden
>> <mailto:address@hidden>> wrote:
>> 
>>    On 06/17/2017 04:26 AM, address@hidden
>>    <mailto:address@hidden> 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 <address@hidden
>>    <mailto:address@hidden>> 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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