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Re: UDP: Send and receive on same port?
From: |
Mario Lang |
Subject: |
Re: UDP: Send and receive on same port? |
Date: |
Tue, 30 Mar 2021 13:11:47 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/27.1.50 (gnu/linux) |
Replying to self
Nevermind, it works by creating a datagram server first, and then using
set-process-datagram-address to set the destination. The server process
can now be used to send UDP as well. However, I am seeing lost incoming
packets. According to tcpdump, the reply is clearly there, but the
process filter only seems to pick it up 1 out of roughly 4 times.
Weird.
Mario Lang <mlang@blind.guru> writes:
> Hi.
>
> Certain OSC (Open Sound Control) applications reply to the UPD sender
> port, making it necessary to listen on the same port which was allocated
> for the sending process. I remember having asked this roughly a year
> ago, and the answer was a no. I'd like to re-raise this one: Can we do
> something with the process framework to allow listening on a UDP client
> port? I dont see a way to get the allocated port of the sending
> process.
--
CYa,
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