OpenVPN network interface configuration

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http://serverfault.com – I am trying to setup a VPN server on Ubuntu 12.04. I think my network interfaces configuration is wrong. In my syslog, I'm seeing that iptables is denying some stuff, so I've posted my iptables rules as well. I've been trying to follow this guide, but obviously something is wrong. /etc/network/interfaces: #The loopback interface auto lo iface lo inet loopback #configuration for openvpn auto br0 iface br0 inet static address netmask gateway bridge_ports eth0 #Configuration for eth0 and aliases #This line ensures that the interface will (HowTos)