[ENet-discuss] ENet and NAT?

[Lee Salzman]

ENet uses one and only one UDP socket per host.

Lee

Ruud van Gaal wrote:
> Hi,
>  
> I'm new here, just starting implementing ENet as middleware. Halfway I'm 
> wandering how ENet goes along with routers & NAT tables.
> My old implementation:
> - client/server model
> - open a UDP connection at port 25000
> - write & receive over this port
> - distinguish between different clients by looking at the sending IP address
>  
> In ENet I see it works more like tcp:
> - open a UDP server at port 25000
> - client connects and gets another UDP port to communicate with
> - each client seems to write over its own UDP connection with its own port
> - distinguish clients by which socket the message came in through
>  
> If indeed the client, after the initial connection phase, starts 
> communicating over another port, doesn't this mean trouble with 
> firewalls/NATs? It seems the port is dynamically chosen.
>  
> Thanks for any insights,
> Ruud
>