> You could try rtroute solict as well, first from master to slave, then
> the other way around. This also indicates if there is any communication
> at all (one direction should work as we saw). Check /proc/xenomai/irq if
> something happens, and on which side.
>
>
>   
If I have understand you right, I shall look whether an interrupt was
triggert at the other target after a arp request with rtroute solicit?


This is Target #2


BusyBox v1.01 (Slind 1:1.01-2.slind1) Built-in shell (ash)
Enter 'help' for a list of built-in commands.

kontron_xenomai:~# start_rtnet.sh
Using /usr/local/rtnet/modules/rtnet.ko
Using /usr/local/rtnet/modules/rtipv4.ko
Using /usr/local/rtnet/modules/rtpacket.ko
Using /usr/local/rtnet/modules/rt_loopback.ko
Using /usr/local/rtnet/modules/rt_tulip.ko
rtlo      Medium: Local Loopback
          IP address: 127.0.0.1
          UP LOOPBACK RUNNING  MTU: 1500

rteth1    Medium: Ethernet  Hardware address: 00:E0:4B:0E:3D:2B
          IP address: 10.0.0.1  Broadcast address: 10.255.255.255
          UP BROADCAST RUNNING  MTU: 1500

kontron_xenomai:~# cat /proc/xenomai/irq
IRQ         CPU0
  0:        9515
 11:           1
 34:           2
kontron_xenomai:~#
-----------------------------------------------------------------------------------
This is Target #1



BusyBox v1.01 (Slind 1:1.01-2.slind1) Built-in shell (ash)
Enter 'help' for a list of built-in commands.

kontron_xenomai:~# start_rtnet.sh
Using /usr/local/rtnet/modules/rtnet.ko
Using /usr/local/rtnet/modules/rtipv4.ko
Using /usr/local/rtnet/modules/rtpacket.ko
Using /usr/local/rtnet/modules/rt_loopback.ko
Using /usr/local/rtnet/modules/rt_tulip.ko
rtlo      Medium: Local Loopback
          IP address: 127.0.0.1
          UP LOOPBACK RUNNING  MTU: 1500

rteth1    Medium: Ethernet  Hardware address: 00:E0:4B:0E:3D:29
          IP address: 10.0.0.2  Broadcast address: 10.255.255.255
          UP BROADCAST RUNNING  MTU: 1500

kontron_xenomai:~# cat /proc/xenomai/irq
IRQ         CPU0
  0:       22195
 11:           1
 34:           2
kontron_xenomai:~# rtroute solicit 10.0.0.1 dev rteth1
kontron_xenomai:~# cat /proc/xenomai/irq
IRQ         CPU0
  0:       30061
 11:           2
 34:           3
kontron_xenomai:~#

-------------------------------------------------------------------------------

This is Target #2


kontron_xenomai:~# cat /proc/xenomai/irq
IRQ         CPU0
  0:       33878
 11:           1
 34:           2



-> No interrupt was triggert at the other target. The other way around
the same.

But local there is one on rx and tx after rtroute - see above. Did I
understand something wrong?

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