On Sun, 23 Jul 2023 09:43:54 +0000 (UTC), Jason Long via Openvpn-users <openvpn-users@lists.sourceforge.net> wrote:
>Hello, >Is it possible to run multiple OpenVPN server on one NIC? Or each OpenVPN >server profile needs a separate NIC? > On my VPN servers (I run such a server on each network where I have RPi devices running so I can reach them) I always install OpenVPN with two services active: 1) One uses UDP port 1194 and implements a full VPN server which can be used to let the clients enter the Internet from the location of the server to disable geolocation of certain services. This is what public VPN services also do. 2) And the other is using UDP port 1195 and is configured to only allow clients to access the LAN on which the server itself runs. All other accesses will be handled by the client's own gateway. This is a so called "split tunnel" setup, which I use when I only want to reach the devices on the remote LAN but keep my own Internet gateway for everything else. The OpenVPN services bind to all network interfaces of the VPN server device but the access from outside uses port forwarding on the router and here a specific target IP (local IP) is specified with the target local IP of the port forward as well as the port to use. So in the client's OVPN file the server is specified not by an IP address but a DNS name for the Internet connection of the router. This is updated by a dynamic dns service to point to the actual router's external address. Your question regarding the NIC is not making any sense to me, any NIC on the server will be used, the only thing is that you must make sure that the incoming calls to the router's external address are fowarded to the correct internal address of the OpenVPN server device itself. And this also specifies the port to handle... One forward rule for each service you enable. And on the OpenVPN server device you will have to add the proper IPTABLES settings to make the forwarding work. HTH -- Bo Berglund Developer in Sweden _______________________________________________ Openvpn-users mailing list Openvpn-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/openvpn-users
