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I'm connected to a VPN known to work from server-side (I can connect to it on Windows). I cannot use the VPN on Centos6.

ping -I tun0

Warning: cannot bind to specified iface, falling back: Operation not permitted
PING ( from tun0: 56(84) bytes of data.
--- ping statistics ---
12 packets transmitted, 0 received, 100% packet loss, time 11905ms


tun0      Link encap:UNSPEC  HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00  
inet addr:  P-t-P:  Mask:
RX packets:2 errors:0 dropped:0 overruns:0 frame:0
TX packets:119 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100 
RX bytes:168 (168.0 b)  TX bytes:9996 (9.7 KiB)

Openvpn claims that I'm connected:

Thu May 17 12:46:11 2012 ROUTE default_gateway=
Thu May 17 12:46:11 2012 TUN/TAP device tun0 opened
Thu May 17 12:46:11 2012 TUN/TAP TX queue length set to 100
Thu May 17 12:46:11 2012 /sbin/ip link set dev tun0 up mtu 1500
Thu May 17 12:46:11 2012 /sbin/ip addr add dev tun0 local peer
Thu May 17 12:46:11 2012 /sbin/ip route add via
Thu May 17 12:46:11 2012 /sbin/ip route add via
Thu May 17 12:46:11 2012 Initialization Sequence Completed

Kernel IP routing table:

Destination     Gateway         Genmask         Flags Metric Ref    Use Iface UH    0      0        0 tun0 UGH   0      0        0 tun0   U     2      0        0 wlan0   UG    0      0        0 tun0         UG    0      0        0 wlan0

Not sure what else would be helpful, but would be glad to provide it. Thanks in advance.

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