I'm trying to use netcat to debug SIP calls, which communicate over UDP.
Is there a way to get the same netcat instance to listen to multiple UDP Connections? I've tried connecting to the same netcat session from two different hosts and the second is always unable to connect, even when I send an EOF from the first.
I'm aware that UDP "Connection" is a misnomer and that no such thing exists, am I thinking about this in the wrong way?
I'm version agnostic as I have both OpenBSD and Ubuntu "traditional" (GNU Debian) netcats installed.
I've tried the -k flag in OpenBSD to no avail.
Any ideas are appreciated.