A hamachi faq-ba kérdezte valaki, hogy routere van és nem tud játszani, és akkor kerestem rá, akkor találtam meg ezt a szöveget:
"Hamachi connects to a central server on ports 12975 and 32976
using TCP. First port is used for a initial contact, second - for an
actual session. It also uses dynamic local and remote UDP ports
for communicating with other Hamachi peers.
What you can do is to fix local UDP port.
Open Hamachi Preferences, System page and enable Magic Option in
Troubleshooting section. The number next to it is UDP port value.
Fixing UDP port is normally used in conjunction with configuring port
forwarding on your NAT/router device when resolving 'yellow status
issue'.
Yellow status means that Hamachi cannot establish direct p2p tunnel
toward respective peer. This is not a bug or an error, it is an artefact
of core Hamachi technology. This condition occurs in approximately 5%
of all cases and it is discussed in this FAQ thread"