Re: Can I use same port for sending and receiving in UDP
You can send a packet to any port you want from a UDP socket. The fact that
the recipient would get it or not is unknown at that point. Just because a
message came through a specific UDP port does not mean that the sender is
listening to messages on that same port.
AliR.
"Stephen Myers" <StephenMyers@discussions.microsoft.com> wrote in message
news:2C430893-FF39-4BBE-AB44-3032274112C8@microsoft.com...
I believe what's going on is there is one known port. Once a message is
received using RecvFrom(), you can send replies to that port.
Steve
"Tom Serface" wrote:
Often they are yes, but the client is typically an application and the
server a service. Not sure if that makes any difference.
Tom
"Joseph M. Newcomer" <newcomer@flounder.com> wrote in message
news:5fq7t41t491foha28drvgqod248h5uhdtt@4ax.com...
Are both client and server running on the same machine?
joe
On Wed, 1 Apr 2009 13:44:43 -0700, "Tom Serface" <tom@camaswood.com>
wrote:
We use the same port for listening and sending in several of our
applications and it works fine. I'm not sure this is "standard" or
anything, but the applications have been working well for a long time
and
ports are hard to register with firewalls, etc. so we try to minimize
the
one's we use.
Tom
"Joseph M. Newcomer" <newcomer@flounder.com> wrote in message
news:gac7t4dhfd670reusirj9et2f6j2sc9576@4ax.com...
A port is associated with a single application. A single application
can
use the same
port to both send and receive, but I do not think it is supported for
both. Think of this
as client and server; the client and server ports must be different.
joe
On Tue, 31 Mar 2009 22:46:51 -0700 (PDT), Faisal
<faisalm83@gmail.com>
wrote:
Hi,
I've an application which uses UDP Sockets for IPC.
My application communicates with another application through UDP
sockets. A fixed port number is used for this. Now I want to receive
the data send by the other application. Both application runs in the
same machine. Can I use the same UDP port for sending and receiving?
If so, is there any chance that the data sent by my application is
received by itself?
Joseph M. Newcomer [MVP]
email: newcomer@flounder.com
Web: http://www.flounder.com
MVP Tips: http://www.flounder.com/mvp_tips.htm
Joseph M. Newcomer [MVP]
email: newcomer@flounder.com
Web: http://www.flounder.com
MVP Tips: http://www.flounder.com/mvp_tips.htm