darki Hey guys, i got a new flat and now i have a DS-Lite connection from my provider. I used this configuration on my server: dev tun proto udp4 port 1194 ca /etc/openvpn/easy-rsa/keys/XX.crt cert /etc/openvpn/easy-rsa/keys/XX.crt key /etc/openvpn/easy-rsa/keys/XX.key dh /etc/openvpn/easy-rsa/keys/dh1024.pem server 10.8.0.0 255.255.255.0 persist-key persist-tun user nobody group nogroup status /var/log/openvpn-status.log verb 3 client-to-client comp-lzo keepalive 10 120 and this configuration on my clients: dev tun client proto udp remote xxx.xx 1194 resolv-retry infinite nobind persist-key persist-tun ca ca.crt cert SUSA.crt key SUSA.key comp-lzo verb 3 now my clients cannot connect to my server, because ipv4 is not working on my DS-Lite connection from my provider. Is there any way to get my clients connected without changing the config from the clients? I have more than 40 clients. Its hard work to get access to all clients to change the config. I read something about socat, someone nows, how to configure it?