Re: [Discuss-gnuradio] Enabling the cognitive radio with GNU Radio+USRP

[Jakub Moskal]

Michael,

Thank you for the response. What I am doing right now is forwarding
the packets from the tunnel.py to a JMS (Java Message Service) server
using the STOMP (http://stomp.codehaus.org/) protocol, available for
python. JMS server is pushing packets from its clients to the
tunnel.py. What JMS gives me is the asynchronous message-based
communication and reliability. The JMS server can talk to clients
written in a variety of languages (Java, C, C++, C#, Ruby, Perl,
Python, PHP). At this point the only issue is that I forward packets
from the PHY/MAC layer almost directly to the application layer.. I
guess using the TUN/TAP would forward packets through the kernel's
network stack and provide implementation of the higher levels of the
OSI model, so I wouldn't have to worry about things like lost packets
and segmentation..

Jakub

On Sat, Mar 6, 2010 at 8:13 PM, Michael Dickens <address@hidden> wrote:
> On Mar 4, 2010, at 2:45 PM, Jakub Moskal wrote:
>>
>> Last question.. I own to USRPs and I successfully installed the
>> gnuradio with grc on two MacBooks (10.6.2). Examples run fine, but
>> when it comes to the tunnel.py I cannot make the TUN/TAP interface to
>> work on OSX, has anyone had luck with that? I browsed the list
>> archives, but I couldn't find a tutorial to make it happen. After
>> reading the
>> http://lists.gnu.org/archive/html/discuss-gnuradio/2009-01/msg00047.html
>> I tried the tuntaposx and Tunnelblick, but with no luck. For now I
>> replaced the tun/tap with a STOMP/JMS layer.
>
>
> I have no answers to your previous questions, but I'll address the one
> above.  tap/tun on OSX works differently than it does on Linux; I don't
> remember the details.  I've (still, as per the link about) never gotten it
> to work for me, though admittedly I haven't tried very hard either.  If you
> can find a way of doing the equivalence of tap/tun on OSX, then I say go for
> it & good for you & let us know what it was & how you did it. - MLD
>
>