Ports used for UDP acceleration
Posted: Fri Aug 25, 2017 2:48 pm
I have set up Soft Ether with all clients disabling their UDP acceleration because this would lead to unstable connections.
Today I noticed why: My router/firewall has only port forwardings for TCP/5555 and not for UDP ports, so all UDP connections were dropped. I saw blocked connection attempts to UDP/40000 and UDP/40001 for the two clients I tested.
What is the port range SoftEther uses for UDP acceleration, so I can forward the correct range? Right now I'm using UDP/40000-41000 (I have maybe 10 clients) and so far that seems to work, but I'm not sure that's enough.
Throughput with UDP acceleration on has roughly doubled, so I don't want to turn it off again ;)
Today I noticed why: My router/firewall has only port forwardings for TCP/5555 and not for UDP ports, so all UDP connections were dropped. I saw blocked connection attempts to UDP/40000 and UDP/40001 for the two clients I tested.
What is the port range SoftEther uses for UDP acceleration, so I can forward the correct range? Right now I'm using UDP/40000-41000 (I have maybe 10 clients) and so far that seems to work, but I'm not sure that's enough.
Throughput with UDP acceleration on has roughly doubled, so I don't want to turn it off again ;)