UDP nat?

[foxgod]

how to come true udp p2p from one LAN to another LAN by QT?

[gyll]

this has nothing to do with Qt, going through NATs is a killer.

[foxgod]

who can help me ?

[foxgod]

i read some code about p2pclient and p2pserver ,but it can't come true .

[gyll]

again, p2p through NAT is a KILLER, and you obviously have no clue what you're up against. take a look here: http://p2p-os.blogspot.com

[foxgod]

[quote author="gyll" date="1410778908"]again, p2p through NAT is a KILLER, and you obviously have no clue what you're up against. take a look here: http://p2p-os.blogspot.com[/quote]

my server has gotten clientA and clientB’s LAN’s ip and port ,now clientA send a message to clientB , server tell clientB to connecte clientA. clientB is start to connecte clientA, but both are not get message from each other.

[dheerendra]

what is the ip address assigned to each client ? Also if it through NAT Qt has no role to play.

[foxgod]

[quote author="Dheerendra" date="1410830648"]what is the ip address assigned to each client ? Also if it through NAT Qt has no role to play.[/quote]

i have a server ,it has a public IP, clientA and clientB send a message to server ,server records clientA and clientB's ip and port from udpsocket.