My problem is that the guys on the remote machine are telling me that I need to send certain data in the "TCP Header", which is something that is distinct from the data that I send using "print $socket"

This sounds kind of oddball, since application-level stuff doesn't see TCP headers unless it's doing something like sniffing traffic. Can you say something about what you're trying to do? What kind of server/service are you trying to talk to? And what, specifically, are the server guys telling you that you need to add?

In reply to Re: TCP Headers by dws
in thread TCP Headers by Gorby

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