Symptom
Running the daginf command results in the following:
> daginf -v
daginf: panic: No DAG cards found! Is dag driver
loaded?
Resolution
Running the dagconfig command resolves the problem and the data can be dumped.
> dagconfig default
> dagconfig nic
> dagconfig enablea
> dagconfig varlen slen=1540
> dagconfig rxonly
> dagconfig -si
To check whether or not the card is working properly, you can dump the received data using dagsnap. Ensure that you restart the server afterward.
> dagsnap -o /tmp/tracefile
> ls -l /tmp/tracefile
-rw-r----- 1 root root 261644288 Jun 6 09:45 /tmp/tracefile