2.3: options not pushed sucessfully in server mode after client restart

[lvp]

A system is setup in server mode for IPv6 access (only) since early 2011 on Debian squeeze running ​http://build.openvpn.org/downloads/allmerged/debian/5/openvpn_2.3-20110421_i386.deb (and earlier). Exchanging with openvpn_2.3-alpha1-debian0_i386.deb (identical configuration apart fromDN syntax in verify script), I can reproduce the following problem. Also with self-compiled versions from ​ftp://ftp.secure-computing.net/pub/FreeBSD/ports/openvpn-devel/: openvpn-201219.tar.gz and some other back to 201135 (201130, 201120, 201117 do segfault on start). (This test case done on x86_64 system.)

Everything is fine if there is no active instance on the server for the connecting client. But if the client is restarted and not timed out on the server, option pull/push is not working correctly. PUSH_REQUEST is sent every 5 seconds but not replied to. See attached server log for both cases (addresses etc. modified, verb 6).

Client is 2.1.4 on OpenWRT, in this case. (Setup pushes environment variables to allow IPv6 setup in client up-script without new IPv6 support there.)

server side openvpn --version
OpenVPN 2.3-alpha1 x86_64-linux-gnu [SSL (OpenSSL)] [LZO2] [EPOLL] [PKCS11] [eurephia] [MH] [PF_INET6] [IPv6 payload 20110522-1 (2.2.0)] built on Feb 21 2012
Originally developed by James Yonan
Copyright (C) 2002-2010 OpenVPN Technologies, Inc. <sales@…>

$ ./configure --enable-pthread --enable-password-save --host=x86_64-linux-gnu --build=x86_64-linux-gnu --prefix=/usr --mandir=${prefix}/share/man --with-ifconfig-path=/sbin/ifconfig --with-route-path=/sbin/route CFLAGS=-g -O2 build_alias=x86_64-linux-gnu host_alias=x86_64-linux-gnu LDFLAGS= CPPFLAGS= --no-create --no-recursion

Compile time defines: ENABLE_CLIENT_SERVER ENABLE_DEBUG ENABLE_EUREPHIA ENABLE_FRAGMENT ENABLE_HTTP_PROXY ENABLE_MANAGEMENT ENABLE_MULTIHOME ENABLE_PASSWORD_SAVE ENABLE_PORT_SHARE ENABLE_SOCKS USE_CRYPTO USE_LIBDL USE_LZO USE_OPENSSL USE_PKCS11 USE_SSL

Lutz