🚀 go-pugleaf

Hans Galema <dontusethis@dontusethis.nl> wrote:
>minoy wrote:
>>  I actually want to know this :
>>       A client(C) in LAN behind the Firewall/route(F) want to
>>  connect to a Server(S) in WAN.Suppose that we use the UDP.
>>       Now,Client connects to Server directly use S's IP,and
>>  Send a Message To Server,
>> The Server receive the Client's Message,then Send the response Message to Client,Now,
>> I confused,The Server must connect to Client 
>
>No. Why are you thingking so ? The client just connected to the server
>using the port where the server is listening on. The communication
>then goes over a different port indeed. That port is proposed by the
>client. The IP is the IP as seen by the server.

Sorry,You mistook my meaning.
I want to know that :
    Seeing in the Server side,What's the Client's IP and 
Ports? I know that The IP must be FireWall/Rount'IP,But Which
Port?
    I also confused that a Peer(A) behind the FineWall/Route
 connect to anoher Peer(B) behind the FireWall/Rout,Which IP
the A use to connect to B.
    This is like the MSN,When I am using  the MSN in a LAN talking with my friend also in anther LAN,I find that I and myfiend's IP in MSN arn't 
the LAN IP,and the PORT change when I relogin.
     So I Want to kown: How MSN works?

>
> > use Firewall's IP,But use Which Port?
>
>You have no influence on the proposed port(number). As far as I know:
>when a client can connect with the server than the recommunication
>will be ok too. Do you have other experiences?
>
>> If they connect next time,does the Port change?
>
>The communication port can be different each time yes.
>
>Hans.