Hello
thanks for explanation
my other site have only one computer so maybe it could consider as roadwarrior connection.
i will test different solution.
i choose PKI cause it look like more secure
dd-wrt config with PKI use gui , shared key use script ;-)
PKI allow client-to-client connection ( i think) but not tested yet !
i hope have not to use IPSEC for firewall rules over vpn !
so maybe i should contribute to the project to stay using openvpn…