2013-01-25 19:39:14 +08:00
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Since 2.3.0, OpenVPN officially supports IPv6, and all widely used
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patches floating around for older versions have been integrated.
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2011-08-12 00:00:57 +08:00
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IPv6 payload support
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--------------------
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2010-01-07 21:51:40 +08:00
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2013-01-25 19:39:14 +08:00
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This is for "IPv6 inside OpenVPN", with server-pushed IPv6 configuration
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on the client, and support for IPv6 configuration on the tun/tap interface
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from within the openvpn config.
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The code in 2.3.0 supersedes the IPv6 payload patches from Gert Doering,
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formerly located at http://www.greenie.net/ipv6/openvpn.html
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2010-01-07 21:51:40 +08:00
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2013-01-25 19:39:14 +08:00
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The following options have been added to handle IPv6 configuration,
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analogous to their IPv4 counterparts (--server <-> --server-ipv6, etc.)
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2010-01-07 21:51:40 +08:00
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2013-01-25 19:39:14 +08:00
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- server-ipv6
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- ifconfig-ipv6
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- ifconfig-ipv6-pool
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- ifconfig-ipv6-push
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- route-ipv6
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- iroute-ipv6
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2011-08-12 00:00:57 +08:00
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2013-01-25 19:39:14 +08:00
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see "man openvpn" for details how they are used.
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2011-08-12 00:00:57 +08:00
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IPv6 transport support
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----------------------
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2013-01-25 19:39:14 +08:00
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This is to enable OpenVPN peers or client/servers to talk to each other
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over an IPv6 network ("OpenVPN over IPv6").
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The code in 2.3.0 supersedes the IPv6 transport patches from JuanJo Ciarlante,
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formerly located at http://github.com/jjo/openvpn-ipv6
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2014-01-03 22:49:40 +08:00
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OpenVPN 2.4.0 includes a big overhaul of the IPv6 transport patches
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originally implemented for the Android client (ics-openvpn)
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2013-01-25 19:39:14 +08:00
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2014-01-03 22:49:40 +08:00
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IPv4/IPv6 transport is automatically is selected when resolving addresses.
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Use a 6 or 4 suffix to force IPv6/IPv4:
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2013-01-25 19:39:14 +08:00
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--proto udp6
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2014-01-03 22:49:40 +08:00
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--proto tcp4
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2013-01-25 19:39:14 +08:00
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--proto tcp6-client
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2014-01-03 22:49:40 +08:00
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--proto tcp4-server
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2013-01-25 19:39:14 +08:00
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--proto tcp6 --client / --proto tcp6 --server
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2014-01-03 22:49:40 +08:00
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On systems that allow IPv4 connections on IPv6 sockets
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(all systems supporting IPV6_V6ONLY setsockopt), an OpenVPN server can
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2013-01-25 19:39:14 +08:00
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handle IPv4 connections on the IPv6 socket as well, making it a true
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2014-01-03 22:49:40 +08:00
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dual-stacked server. Use bind ipv6only to disable this behaviour.
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2013-01-25 19:39:14 +08:00
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On other systems, as of 2.3.0, you need to run separate server instances
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for IPv4 and IPv6.
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