Tomato : gateway problem on a OpenVPN server setup

Hello,

I have some problem configuring an Open VPN server from a tomato firmware on a WNR3500L.

I’ve setup the server like that :

http://i58.tinypic.com/dxblmw.png

http://tinypic.com/r/wu2rfd/8

And, when connecting from a client (ubuntu 14.04). I’ve got this on my /var/log/syslog

Jul 30 14:08:51 thinkpad nm-openvpn[17467]: OpenVPN 2.3.2 x86_64-pc-linux-gnu [SSL (OpenSSL)] [LZO] [EPOLL] [PKCS11] [eurephia] [MH] [IPv6] built on Feb  4 2014
Jul 30 14:08:51 thinkpad nm-openvpn[17467]: WARNING: No server certificate verification method has been enabled.  See http://openvpn.net/howto.html#mitm for more info.
Jul 30 14:08:51 thinkpad nm-openvpn[17467]: NOTE: the current --script-security setting may allow this configuration to call user-defined scripts
Jul 30 14:08:51 thinkpad nm-openvpn[17467]: ******* WARNING *******: null MAC specified, no authentication will be used
Jul 30 14:08:51 thinkpad nm-openvpn[17467]: UDPv4 link local: [undef]
Jul 30 14:08:51 thinkpad nm-openvpn[17467]: UDPv4 link remote: [AF_INET]82.239.XX.XXX:1194
Jul 30 14:08:53 thinkpad nm-openvpn[17467]: [Bob] Peer Connection Initiated with [AF_INET]82.239.XX.XXX:1194
Jul 30 14:08:55 thinkpad nm-openvpn[17467]: TUN/TAP device tun0 opened
Jul 30 14:08:55 thinkpad nm-openvpn[17467]: /usr/lib/NetworkManager/nm-openvpn-service-openvpn-helper tun0 1500 1538 10.8.0.6 10.8.0.5 init
Jul 30 14:08:55 thinkpad NetworkManager[1147]:    SCPlugin-Ifupdown: devices added (path: /sys/devices/virtual/net/tun0, iface: tun0)
Jul 30 14:08:55 thinkpad NetworkManager[1147]:    SCPlugin-Ifupdown: device added (path: /sys/devices/virtual/net/tun0, iface: tun0): no ifupdown configuration found.
Jul 30 14:08:55 thinkpad NetworkManager[1147]: <warn> /sys/devices/virtual/net/tun0: couldn't determine device driver; ignoring...
Jul 30 14:08:55 thinkpad NetworkManager[1147]: <info> VPN connection 'home' (IP Config Get) reply received.
Jul 30 14:08:55 thinkpad NetworkManager[1147]: <info> VPN connection 'home' (IP4 Config Get) reply received.
Jul 30 14:08:55 thinkpad NetworkManager[1147]: <info> VPN Gateway: 82.239.XX.XXX
Jul 30 14:08:55 thinkpad NetworkManager[1147]: <info> Tunnel Device: tun0
Jul 30 14:08:55 thinkpad NetworkManager[1147]: <info> IPv4 configuration:
Jul 30 14:08:55 thinkpad NetworkManager[1147]: <info>   Internal Gateway: 10.8.0.5
Jul 30 14:08:55 thinkpad NetworkManager[1147]: <info>   Internal Address: 10.8.0.6
Jul 30 14:08:55 thinkpad NetworkManager[1147]: <info>   Internal Prefix: 32
Jul 30 14:08:55 thinkpad NetworkManager[1147]: <info>   Internal Point-to-Point Address: 10.8.0.5
Jul 30 14:08:55 thinkpad NetworkManager[1147]: <info>   Maximum Segment Size (MSS): 0
Jul 30 14:08:55 thinkpad NetworkManager[1147]: <info>   Static Route: 192.168.0.0/24   Next Hop: 192.168.0.0
Jul 30 14:08:55 thinkpad NetworkManager[1147]: <info>   Static Route: 10.8.0.1/32   Next Hop: 10.8.0.1
Jul 30 14:08:55 thinkpad NetworkManager[1147]: <info>   Forbid Default Route: no
Jul 30 14:08:55 thinkpad NetworkManager[1147]: <info>   Internal DNS: 192.168.0.1
Jul 30 14:08:55 thinkpad NetworkManager[1147]: <info>   DNS Domain: '(none)'
Jul 30 14:08:55 thinkpad NetworkManager[1147]: <info> No IPv6 configuration
Jul 30 14:08:55 thinkpad nm-openvpn[17467]: Initialization Sequence Completed
Jul 30 14:08:56 thinkpad NetworkManager[1147]: <info> VPN connection 'home' (IP Config Get) complete.
Jul 30 14:08:56 thinkpad NetworkManager[1147]: <info> Policy set 'home' (tun0) as default for IPv4 routing and DNS.
Jul 30 14:08:56 thinkpad NetworkManager[1147]: <info> Writing DNS information to /sbin/resolvconf
Jul 30 14:08:56 thinkpad dnsmasq[2571]: setting upstream servers from DBus
Jul 30 14:08:56 thinkpad dnsmasq[2571]: using nameserver 192.168.0.1#53

which looks great but the gateway that I’ve been given is not responding :

~ ping 10.8.0.5
PING 10.8.0.5 (10.8.0.5) 56(84) bytes of data.
^C
--- 10.8.0.5 ping statistics ---
32 packets transmitted, 0 received, 100% packet loss, time 31248ms

A ping 10.8.0.1 doesn’t respond either. Only my IP (10.8.0.6) responds.

Also, here’s my routes :

~  route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
default         10.8.0.5        0.0.0.0         UG    0      0        0 tun0
10.8.0.1        10.8.0.5        255.255.255.255 UGH   0      0        0 tun0
10.8.0.5        *               255.255.255.255 UH    0      0        0 tun0
82.239.XX.XXX   192.168.1.1     255.255.255.255 UGH   0      0        0 eth0
192.168.0.0     10.8.0.5        255.255.255.0   UG    0      0        0 tun0
192.168.1.0     *               255.255.255.0   U     1      0        0 eth0

My LAN at home is 192.168.0.0 and I’m connecting from the network 192.168.1.0.

Any idea what is wrong ?