Tinc hangs if started with network disconnected

Sandro Stiller sandro.stiller at elfin.de
Fri Feb 17 09:55:26 CET 2017

On my system, tinc is started on bootup.
If the Network cable is not connected, tincd hangs forever after these messages:

2017-02-13 11:34:01 tinc.XXX[403]: tincd 1.0.31 starting, debug level 5
2017-02-13 11:34:01 tinc.XXX[403]: /dev/net/tun is a Linux tun/tap device (tun mode)
2017-02-13 11:34:01 tinc.XXX[403]: Executing script tinc-up
2017-02-13 11:34:02 tinc.XXX[403]: Listening on port 655
2017-02-13 11:34:02 tinc.XXX[403]: Ready
2017-02-13 11:34:02 tinc.XXX[403]: Error looking up XXX.net port 2300: Temporary failure in name resolution
2017-02-13 11:34:02 tinc.XXX[403]: Could not set up a meta connection to XXXVPN
2017-02-13 11:34:02 tinc.XXX[403]: Trying to re-establish outgoing connection in 5 seconds
2017-02-13 11:34:02 tinc.XXX[403]: Purging unreachable nodes

Even if I reconnect the interface, tinc does not continue.
If I restart the service manually, everything works fine, even with disconnected network interface (it tries again and again until internet connection works).
I think, there is some kind of boot-time race condition.
It's the same problem with version 1.0.28 and 1.0.31.

Do you have an idea how to find/solve the problem?



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