From: Gert Doering <gert@...1296...>
Date: Sun, 19 Mar 2017 20:34:51 +0100
Message-Id: <20170319193451.24289-1-gert@...1296...>
Subject: [Openvpn-devel] [PATCH] Document --proto udp6, tcp6, etc.
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Trac #793

Signed-off-by: Gert Doering <gert@...1296...>
---
 doc/openvpn.8 | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/doc/openvpn.8 b/doc/openvpn.8
index 1086960..29577e1 100644
--- a/doc/openvpn.8
+++ b/doc/openvpn.8
@@ -419,6 +419,16 @@ can be
 or
 .B tcp-server.
 
+These will only try IPv4 to connect to the remote host.  To use IPv6,
+add "6" to the protocol, as in
+.B udp6,
+.B tcp6-client,
+or
+.B tcp6-server.
+OpenVPN 2.3 can not auto-determine whether to use IPv4 or IPv6 (or
+automatically try whatever is available) - full dual-stack functionality
+is available starting with OpenVPN 2.4.0
+
 The default protocol is
 .B udp
 when
-- 
2.10.2