I have a friend who wishes to connect to me over the web with an older P2P-based software. We had trouble doing this and found out he's under symmetric NAT that randomly picks an available port to talk on. We tried port-forwarding the P2P software ports, we tried DMZ, and we tried VPN tunneling to another location. After this failed, I did research on symmetric NAT and found his situation pretty hopeless. Is there a way to get Hamachi to succeed here? Just a shot in the dark. Thanks!
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