Hi Gert, Thanks again for your reply. But, I tested my OpenvPN server. As I understand, the Port number is important for the OpenVPN server, because with the same IP address and Different Port, The OpenVPN worked.
Server 1: port 1194 proto udp dev tun ca ca.crt cert server.crt key server.key dh dh.pem server 10.8.0.0 255.255.255.0 ... Server 2: port 1195 proto udp dev tun topology "subnet" push "topology subnet" ca /etc/openvpn/server2/ca.crt cert /etc/openvpn/server2/server2.crt key /etc/openvpn/server2/server2.key dh /etc/openvpn/server2/dh.pem server 10.8.0.0 255.255.255.0 Isn't that strange? On Sunday, July 23, 2023 at 06:29:20 PM GMT+3:30, Gert Doering <g...@greenie.muc.de> wrote: Hi, On Sun, Jul 23, 2023 at 01:32:19PM +0000, Jason Long wrote: > 1- If the port number is different, then "server" IP can be the same? For > example, the first server use: No. That is inside IPs (and something else again), they must be distinct. [..] > 2- You said, "A "NIC" can have multiple IP addresses", so, a server does not > need to have multiple NAT NICs ? For example, A VPN provider can have a VPN > server with a NIC that use three or four public IP addresses. Sure. There's some practical limits - like, some OSes start getting funny when you exceed something like 500 IP addresses on one interface - but besides that it's just a matter of setting up routing/interface config properly. gert -- "If was one thing all people took for granted, was conviction that if you feed honest figures into a computer, honest figures come out. Never doubted it myself till I met a computer with a sense of humor." Robert A. Heinlein, The Moon is a Harsh Mistress Gert Doering - Munich, Germany g...@greenie.muc.de _______________________________________________ Openvpn-users mailing list Openvpn-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/openvpn-users