p2p-middlebox
a p2p-middlebox is middlebox that permits the traversal of p2p applications.
p2p代理
p2p代理是一个允许 p2p应用程序进行通信的代理机制
p2p-firewall
a p2p-firewall is a p2p-middlebox that provides firewall functionality but performs no address translation.
p2p防火墙
p2p防火墙是一个提供了防火墙的功能的p2p代理，但是不进行地址转换.
p2p-nat
a p2p-nat is a p2p-middlebox that provides nat functionality, and may also provide firewall functionality. at minimum, a p2p-middlebox must implement cone nat behavior for udp traffic, allowing applications to establish robust p2p connectivity using the udp hole punching technique.
p2p-nat
