tinc: Network is unreachable
1 minute read Modified:
The problem
When the Fedora 20 server at my parents rebooted because of a general power failure, the tinc tunnel between my parents and myself didn’t work anymore.
Troubleshooting
I enabled the debug logging by sending an INT signal to the daemon.
tincd -n ubbink -k INTThis resulted in the following log items (journalctl -f -l –unit tincd@ubbink.service):
tinc.ubbink[9707]: Got INT signal
tinc.ubbink[9707]: Temporarily setting debug level to 5. Kill me with SIGINT again to go back to level 0.
tinc.ubbink[9707]: Trying to connect to amys (xxx.xxx.xxx.xxx port 655)
tinc.ubbink[9707]: xxx.xxx.xxx.xxx port 655: Network is unreachable
tinc.ubbink[9707]: Could not set up a meta connection to amys
tinc.ubbink[9707]: Trying to re-establish outgoing connection in 35 seconds
tinc.ubbink[9707]: Purging unreachable nodes
I couldn’t find why this was happening because when I used netcat to connect to port 655 via udp everything worked.
nc -vu xxx.xxx.xxx.xxx 655