BR><BR>Anyway, should each packet have a copy of the IP header?<BR><BR>Second question. According to my prof when fragmentation of a message occurs it is broken up into the maximum size and then ...

BR><BR>I've noticed that the headers on external emails contain the ... [email protected]><BR>> Received: from [public.ip] (helo=proxy.work.com)<BR>> by mail.zrz.tu-berlin.de with esmtp (exim-3.36 ...