On 08/10/2014 02:38 PM, Gert Doering wrote: > Hi, > > On Sun, Aug 10, 2014 at 11:33:39AM +0200, Lorenz Wenner wrote: >> its my first posting. i am encountering a problem: it seems that in >> every private ipv4-network i can have only one openvpn client at a time >> connected the my openvpn server. all clients are configured in the same >> way. could it be a router issue? As i said: every client can connect to >> the server, as long as he is the first one in the local network. > > This is likely a NAT router issue, being too dumb to properly sort multiple > parallel UDP connections. > > You can work around it by using TCP mode to talk to the server, or get > a proper router, or use IPv6 (which does not force NAT on people) :-)
By default OpenVPN binds to 1194, even as a client. It's possible the router you're using does not understand how to correctly translate this to an unused ephemeral port, or doesn't track state correctly when using UDP. If this is the case, you might find that adding the `nobind` option to your client config resolves the problem. This is generally a good directive to use on clients all the time unless you need specific control over source port selection. -- Josh ------------------------------------------------------------------------------ _______________________________________________ Openvpn-users mailing list Openvpn-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/openvpn-users
