apsync@apsync:~/repositories/software/Airlitix$ rosrun mavros checkid
OK. I got messages from 1:1.
---
Received 6038 messages, from 1 addresses
sys:comp   list of messages
  1:1     0, 1, 2, 4, 140, 141, 147, 26, 30, 31, 32, 36, 74, 331, 76, 77, 83, 340, 230, 105, 111, 241, 245