Hello Antonio, Op vr 26 apr. 2019 om 15:47 schreef Antonio Quartulli <a...@unstable.cc>:
> This said, OpenVPN has a protection that prevents a server to reply to a > PUSH_REQUEST from the same client more than once within 30 seconds. > > Therefore if you are shutting down a client and restarting it within > this short timeframe, it is expected that you won't get any PUSH_REPLY. > > Does this match your observations? > No, unfortunately it does not. This suggestion was also offered by Gert in 2017, but I tried disconnecting after a 2 minute connection, and the issue remained. > If not, could you please mention step by step what to do to reproduce > the faulty problem? > The ticket also contains a step description, and it's rather simple: Set up a server using OpenVPN-NL 2.4.4 or above (I last tried this with 2.4.6). Set up a client using OpenVPN 2.3.9 with a bound client port (so the server sees a new connection as the same connection). Connect the client to the server. Keep the connection up for as long as you like. Close the client (CTRL-C in Linux worked well), and restart it immediately. Using OpenVPN 2.3.9 client, you will never reconnect. Using OpenVPN 2.4.4+ client, you will reconnect after the increasing reconnect timer exceeds the server time-out setting. Note: that using nobind probably fools this logic because the client > will re-connect using a different source port and thus will be > recognized as different. > That was my conclusion as well. :) Kind regards, Pieter Hulshoff
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