This patchset allows clients and servers to work with a tunnel configured with IPv6 only.
Patch 3 is a mere cosmetic change and could be merged regardless of the rest. With this change a server can be configured by using only the '--server-ipv6' directive. This will result in clients receiving only 'ifconfig-ipv6' setting in their push-reply (and no IPv4 at all). Differences from v1: - more windows logic has been added to ensure client is properly started and configured with IPv6 only; - warning messages added when trying to add IPv4 routes (even when redirect-gateway without !ipv4 is specified). Note: the behaviour of redirect-gateway has not been touched, therefore the "ipv6" flag is still required, even if only IPv6 are configured on the interfaces; - redirect-gateway is prevented from adding a bypass route if no IPv4 redirection is taking place; - added support for --ifconfig-pool-persist when only IPv6 is configured - added do_ifconfig_ipv4() in do_ifconfig() to make code symmetric wrt IPv6; - I may have forgotten some other little details.. (Note: this code is also available at [1] in the ipv6-only branch) Cheers, Trac: #208 [1] https://gitlab.com/ordex986/openvpn Antonio Quartulli (8): tun: ensure interface can be configured with IPv6 only windows: properly configure TAP driver when no IPv4 is configured pool: convert pool 'type' to enum pool: allow to configure an IPv6-only ifconfig-pool make server capable of starting with an IPv6-only tunnel pool: add support for ifconfig-pool-persist with IPv6 only route: warn on IPv4 routes installation when no IPv4 is configured options: enable IPv4 redirection logic only if really required src/openvpn/forward.c | 4 +- src/openvpn/helper.c | 8 +- src/openvpn/multi.c | 10 +- src/openvpn/options.c | 16 +- src/openvpn/pool.c | 259 +++++++--- src/openvpn/pool.h | 17 +- src/openvpn/route.c | 14 +- src/openvpn/tun.c | 1142 ++++++++++++++++++----------------------- src/openvpn/tun.h | 12 +- 9 files changed, 754 insertions(+), 728 deletions(-) -- 2.17.1 ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Openvpn-devel mailing list Openvpn-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/openvpn-devel