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Feature #9078

Investigate adding knobs for explicit-exit-notify in OpenVPN

Added by Chris Linstruth 8 months ago.

Status:
New
Priority:
Normal
Assignee:
-
Category:
OpenVPN
Target version:
-
Start date:
10/29/2018
Due date:
% Done:

0%

Estimated time:

Description

explicit-exit-notify looks like it can greatly speed up recovery time on OpenVPN process restarts and potentially HA server installations.

From https://community.openvpn.net/openvpn/wiki/Openvpn24ManPage

--explicit-exit-notify [n]
In UDP client mode or point-to-point mode, send server/peer an exit notification if tunnel is restarted or OpenVPN process is exited. In client mode, on exit/restart, this option will tell the server to immediately close its client instance object rather than waiting for a timeout. The n parameter (default=1) controls the maximum number of attempts that the client will try to resend the exit notification message.

In UDP server mode, send RESTART control channel command to connected clients. The n parameter (default=1) controls client behavior. With n = 1 client will attempt to reconnect to the same server, with n = 2 client will advance to the next server.
OpenVPN will not send any exit notifications unless this option is enabled.

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