Hi, I added ipv6 support to tun driver for solaris. Full source tar ball and patch against original universal tun/tap driver is available here.
http://www.whiteboard.ne.jp/~admin2/tuntap/ In response to this change, I revised the patch against openvpn and set 'ipv6_explicitly_supported' to true. Please find attached patch. The patch is based on OpenVPN 2.1_rc21, and it also includes code to handle tap driver for solaris. With above tun driver and attached patch, solaris/opensolaris is capable to forward ipv6 packets through tun interface. Thanks, Kazuyoshi
patch.openvpn-2.1_rc21.tun.c
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