NAT type downgrade when glider as server

[TGSAN]

Test A

ss-libev (server) --> ss-libev (client) : NAT TYPE B

Test B

glider (server) --> ss-libev (client) : NAT TYPE F

The NAT type is known to degrade when glider is used as a server (clients uniformly use ss-libev), but haven't tested if the same result is achieved when Glider is the client.

[rampageX]

UDP

[TGSAN]

Thank you so much for your dedication, I can't wait to try it out! 👍