[Solved]OpenVPN Problem

[xexxo2002]

I got a pfsense box in my office, and I wanna establish a VPN tunnel between my office and home. After looking for the information of OpenVPN, I still can't get it work. It's the problem:

Jun 15 11:47:49	openvpn[28121]: OpenVPN 2.2.0 amd64-portbld-freebsd8.1 [SSL] [LZO2] [eurephia] [MH] [PF_INET6] [IPv6 payload 20110424-2 (2.2RC2)] built on May 30 2011
Jun 15 11:47:49	openvpn[28121]: WARNING: using --duplicate-cn and --client-config-dir together is probably not what you want
Jun 15 11:47:49	openvpn[28121]: NOTE: the current --script-security setting may allow this configuration to call user-defined scripts
Jun 15 11:47:49	openvpn[28121]: Control Channel Authentication: using '/var/etc/openvpn/server1.tls-auth' as a OpenVPN static key file
Jun 15 11:47:49	openvpn[28121]: TUN/TAP device /dev/tap1 opened
Jun 15 11:47:49	openvpn[28121]: do_ifconfig, tt->ipv6=0, tt->did_ifconfig_ipv6_setup=0
Jun 15 11:47:49	openvpn[28121]: /sbin/ifconfig ovpns1 10.254.0.1 netmask 255.255.255.0 mtu 1500 up
Jun 15 11:47:49	openvpn[28121]: FreeBSD ifconfig failed: external program exited with error status: 1
Jun 15 11:47:49	openvpn[28121]: Exiting

Office's subnet: 192.168.1.0/24
Home's submet: 10.0.0.0/24

pfsense 2.0RC-2 built on  Jun/7/2011

Could anyone help me figure it out?

Edit: Solved after upgrade to newest snapshot.