id,summary,reporter,owner,description,type,status,priority,milestone,component,version,severity,resolution,keywords,cc 288,v2.3.1/IPv6 with proto tcp6 fails to launch; proto udp6 is OK.,darx,,"I'm running openvpn 2.3.1 over IPv6, built from src. When using proto == udp6 , works OK. Switch to proto == tcp6 causes launch FAIL @ ""Assertion failed at socket.c:726"" {{{ openvpn --version OpenVPN 2.3.1 x86_64-suse-linux-gnu [SSL (OpenSSL)] [LZO] [EPOLL] [eurephia] [MH] [IPv6] built on Apr 30 2013 Originally developed by James Yonan Copyright (C) 2002-2010 OpenVPN Technologies, Inc. Compile time defines: enable_crypto=yes enable_debug=yes enable_def_auth=yes enable_dlopen=unknown enable_dlopen_self=unknown enable_dlopen_self_static=unknown enable_eurephia=yes enable_fast_install=needless enable_fragment=yes enable_http_proxy=yes enable_iproute2=no enable_libtool_lock=yes enable_lzo=yes enable_lzo_stub=no enable_management=yes enable_multi=yes enable_multihome=yes enable_pam_dlopen=no enable_password_save=no enable_pedantic=no enable_pf=yes enable_pkcs11=no enable_plugin_auth_pam=yes enable_plugin_down_root=yes enable_plugins=yes enable_port_share=yes enable_selinux=no enable_server=yes enable_shared=yes enable_shared_with_static_runtimes=no enable_small=no enable_socks=yes enable_ssl=yes enable_static=no enable_strict=no enable_strict_options=no enable_systemd=yes enable_win32_dll=yes enable_x509_alt_username=no with_crypto_library=openssl with_gnu_ld=yes with_mem_check=no with_plugindir='$(libdir)/openvpn/plugins' with_sysroot=no git revision: refs/heads/release23/eb16a92894b3d93c grep proto /etc/openvpn/server.conf proto udp6 systemctl start openvpn@server.service systemctl status openvpn@server.service openvpn@server.service - OpenVPN Server on server Loaded: loaded (/etc/systemd/system/openvpn@.service; enabled) Active: active (running) since Thu, 2013-05-02 11:53:56 PDT; 8s ago Process: 8895 ExecStopPost=/etc/openvpn/down.script %i (code=exited, status=0/SUCCESS) Process: 9163 ExecStart=/sbin/openvpn --daemon --writepid /var/run/openvpn/%i.pid --cd /etc/openvpn/ --config %i.conf (code=exited, status=0/SUCCESS) Process: 9137 ExecStartPre=/etc/openvpn/up.script %i (code=exited, status=0/SUCCESS) Main PID: 9164 (openvpn) CGroup: name=systemd:/system/openvpn@.service/server └ 9164 /sbin/openvpn --daemon --writepid /var/run/openvpn/server... May 02 11:53:56 server.mydomain.com systemd[1]: Starting OpenVPN Server on server... May 02 11:53:56 server.mydomain.com up.script[9137]: Thu May 2 11:53:56 2013 TUN/TAP device tun1 opened May 02 11:53:56 server.mydomain.com up.script[9137]: Thu May 2 11:53:56 2013 Persist state set to: OFF May 02 11:53:56 server.mydomain.com up.script[9137]: Thu May 2 11:53:56 2013 TUN/TAP device tun1 opened May 02 11:53:56 server.mydomain.com up.script[9137]: Thu May 2 11:53:56 2013 Persist state set to: ON May 02 11:53:56 server.mydomain.com sudo[9144]: root : TTY=unknown ; PWD=/ ; USER=root ; COMMAND=/sbin/ip addr ...tun1 May 02 11:53:56 server.mydomain.com systemd[1]: Started OpenVPN Server on server. systemctl stop openvpn@server.service perl -pi -e 's|proto.*|proto tcp6|g' /etc/openvpn/server.conf grep proto /etc/openvpn/server.conf proto tcp6 systemctl start openvpn@server.service Job for openvpn@server.service failed. See 'systemctl status openvpn@server.service' and 'journalctl -n' for details. systemctl status openvpn@server.service openvpn@server.service - OpenVPN Server on server Loaded: loaded (/etc/systemd/system/openvpn@.service; enabled) Active: failed (Result: exit-code) since Thu, 2013-05-02 11:55:40 PDT; 16ms ago Process: 9189 ExecStopPost=/etc/openvpn/down.script %i (code=exited, status=0/SUCCESS) Process: 9262 ExecStart=/sbin/openvpn --daemon --writepid /var/run/openvpn/%i.pid --cd /etc/openvpn/ --config %i.conf (code=exited, status=1/FAILURE) Process: 9224 ExecStartPre=/etc/openvpn/up.script %i (code=exited, status=0/SUCCESS) Main PID: 9164 (code=exited, status=0/SUCCESS) CGroup: name=systemd:/system/openvpn@.service/server May 02 11:55:40 server.mydomain.com systemd[1]: Starting OpenVPN Server on server... May 02 11:55:40 server.mydomain.com up.script[9224]: Thu May 2 11:55:40 2013 TUN/TAP device tun1 opened May 02 11:55:40 server.mydomain.com up.script[9224]: Thu May 2 11:55:40 2013 Persist state set to: OFF May 02 11:55:40 server.mydomain.com up.script[9224]: Thu May 2 11:55:40 2013 TUN/TAP device tun1 opened May 02 11:55:40 server.mydomain.com up.script[9224]: Thu May 2 11:55:40 2013 Persist state set to: ON May 02 11:55:40 server.mydomain.com sudo[9240]: root : TTY=unknown ; PWD=/ ; USER=root ; COMMAND=/sbin/ip addr ...tun1 May 02 11:55:40 server.mydomain.com systemd[1]: Failed to start OpenVPN Server on server. May 02 11:55:40 server.mydomain.com systemd[1]: Unit openvpn@server.service entered ...tate ==> /var/log/openvpn/openvpn.log <== ... Thu May 2 11:55:40 2013 us=260312 Incoming Control Channel Authentication: HMAC size=64 block_size=64 Thu May 2 11:55:40 2013 us=260349 LZO compression initialized Thu May 2 11:55:40 2013 us=260377 MTU DYNAMIC mtu=0, flags=1, 0 -> 212 Thu May 2 11:55:40 2013 us=260395 TLS: tls_session_init: entry Thu May 2 11:55:40 2013 us=260413 PID packet_id_init tcp_mode=1 seq_backtrack=64 time_backtrack=15 Thu May 2 11:55:40 2013 us=260494 PID packet_id_init tcp_mode=1 seq_backtrack=64 time_backtrack=15 Thu May 2 11:55:40 2013 us=260521 TLS: tls_session_init: new session object, sid=41b16a04 a3246294 Thu May 2 11:55:40 2013 us=260534 TLS: tls_session_init: entry Thu May 2 11:55:40 2013 us=260549 PID packet_id_init tcp_mode=1 seq_backtrack=64 time_backtrack=15 Thu May 2 11:55:40 2013 us=260602 PID packet_id_init tcp_mode=1 seq_backtrack=64 time_backtrack=15 Thu May 2 11:55:40 2013 us=260623 TLS: tls_session_init: new session object, sid=fed95a97 bd10570d Thu May 2 11:55:40 2013 us=260638 Control Channel MTU parms [ L:1604 D:212 EF:112 EB:0 ET:0 EL:0 ] Thu May 2 11:55:40 2013 us=260667 MTU DYNAMIC mtu=1450, flags=2, 1604 -> 1450 Thu May 2 11:55:40 2013 us=260689 Assertion failed at socket.c:726 Thu May 2 11:55:40 2013 us=260702 Exiting due to fatal error }}} ",Bug / Defect,closed,major,,IPv6,OpenVPN 2.3.1 (Community Ed),"Not set (select this one, unless your'e a OpenVPN developer)",fixed,,