UDP multicasting

[nah0y]

Hello,


In release notes for 1.9.6, there is :"TNet will now use UDP multicasting instead of broadcasting by default."


According to the documentation in the code (in TNUdpProtocol, it's better to use multicasting).
Do you suggest using multicasting for LAN games?

[ArenMook]

Did you use broadcasting before? The change is completely seamless from your perspective. Broadcasting has issues when there are multiple network interfaces present. I saw no such issues with multicasting.

Note that this only affects you if you do any kind of UDP broadcasting -- server discovery via LAN, broadcasted RFCs, stuff like that.

[nah0y]

Yes I was using broadcasting before, and UDP broadcasting, server discovery via LAN, broadcast RFC etc... lol
And activating multicasting make everything stopped working, so I deactivated it

[ArenMook]

Made everything stop working? Did you update the server?

[nah0y]

I don't have a server, it's a LAN game, so one of the player will start a UDP server from its own machine.

[ArenMook]

Ah, well assuming everyone is up to date, multicasting should work. Assuming it's supported by the router, of course. In my tests it worked better than broadcasting as it handled multiple NICs. But hey, I left a way to use broadcasting for a reason. Seems it was a good idea I did

[nah0y]

Ahah sure thing


I'll try to reactivate multicasting (much) later to see why it's not working and try to fix it.