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version can be parsed with the following command:
sed -n 's|^\#X text [0-9][0-9]* [0-9][0-9]* VERSION \(.*\);|\1|p' tpf-client.pd

reasoning is that the side who changes delay should hear the crackling

Using the actual connection is the only reliable way to know source IP and port because of NATing that sometimes mangles
ports