Good morning,
I'm working in a project where I need send and receive RAW ethernet packet in 
realtime.
I'm using a Xenomai 3.1 porting on an Ubuntu machine.
RTNet is enabled in the kernel as modules.

The problem is that I don't really know how to setup the network in userspace.

If this mailing list is not appropriate for the issue please tell me where I 
can write.

The results of  rtifconfig is:
rteth0    Medium: Ethernet  Hardware address: 6C:B3:11:52:4C:E9
          IP address: 192.168.178.142  Broadcast address: 192.168.178.255
          UP BROADCAST RUNNING  MTU: 1500
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

rtlo      Medium: Local Loopback
          IP address: 127.0.0.1
          UP LOOPBACK RUNNING  MTU: 1500

So I tried rtping to ping another machine, in my network: that machine is not a 
realtime one, and rtping response is that there's no route to host.
The first question is: does the other machine need to run rtnet as well to 
respond to the rtping protocol, or it's simply a realtime implementation of the 
standard ping?

The second question is: to send and receive custom ethernet frames from a 
userspace process,
What is the best configuration of rtnet.conf ? I don't really need rt-tcpip and 
I don't know how TDMA works.

Third question is about the API to use: I'm trying to see the examples, but 
I'have some troubles to actually implement this.

I'll appreciate any help
Kind Regards
Marco Tessore



Marco Tessore

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