Openvpn and Lan game over internet via tun device ?

supnobita

Hi everyone!
I have a question about openvpn with tun device:
we can make udp broadcast 255.255.255.255 from client1 send to all client that connect to a vpn server (VPN server using openvpn with tun device) ?
we want to build a vpn server that client over the internet can play lan game together, but we don't want to route all traffic over vpn server (don't want use bridge mode, tap device).
Please tell me how to do this or its impossible with openvpn ????

supnobita

I really appreciate all advice, ideal from you about my question.

Thanks in advance

supnobita

hi debbie10t,
i known Lan game require broadcast msg (255.255.255.255), and brigde mode will send all traffic (even broadcast) to clients.
But i want setup a VPN server that many people can connect and playing lan games together. If I use brigde mode, my server cannot handle, server many people 🙁(.
I use wireshark to capture traffic from my client (that client connect to openvpn server) and then turn on one lan game, and i see the broadcast msg via tun device on my client server, but in my openvpn server, i use tcpdump to capture eth0 (public IP that listen connect from client) and tun0 dev , i don't see broadcast msg ?

Do we have any lib that I can recompile with openvpn to make openvpn redirect udp broadcast ?

Thanks

supnobita

I don't play game on server 🙂.
we use: client1 ===> server vpn
client2===> server vpn
client3===> server vpn

client1, client2, client3, behind NAT, and they have differrent Lan, differrent IP public. And i want they see others when they are playing LAN game.

I hear about bcrelay, but it only use with pptpd ? I search on google and just see how to compile pptpd with bcrelay. I can't see any instruction relate to compile openvpn with bcrelay.

supnobita

@ debbie10t:
I really appreciate to your help !
I want to set up a vpn gateway that many people connect to vpn gateway and play lan game together. I want to provice a service like http://gameranger.com/ and garena.com.
But if i use tap device (bridge mode), it's not good effectively, my server can't handle many client !
So i intend to use tun dev (routing mode), but i have a problem. My client cann't see each other in lan game because udp broadcast message cannot transfer via tun !
And i need some method to transfer broadcast via tun.
Please help me find the best solution !

Thank all

supnobita

My problem like the person who open this topic https://forums.openvpn.net/post8438.html?hilit=bcrelay#p8438
But I don't know how to use bcrelay ? Do you have any instruction or document , web page .... I do search "openvpn with bcreplay" many time on google but i don't see any useful instruction 🙁

Thanks

supnobita

please give me some advice,

Thanks