Date: Sat, 21 Feb 2004 01:05:36 +0300 From: Gleb Smirnoff <glebius@cell.sick.ru> To: Arunav Roy <arunavroyal@yahoo.com> Cc: freebsd-net@freebsd.org Subject: Re: Request For Some help On Netgraph Message-ID: <20040220220536.GD53136@cell.sick.ru> In-Reply-To: <20040220195222.96099.qmail@web60103.mail.yahoo.com> References: <20040220195222.96099.qmail@web60103.mail.yahoo.com>
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On Fri, Feb 20, 2004 at 11:52:22AM -0800, Arunav Roy wrote: A> I have tried out a few things and I have faced A> problems in few things such as : A> 1) How to print the packet information on the konsole A> when the packet passes through the node. Use printf(). :) A> 2) How can I make changes in the Packet header Make sure to read mbuf(9) manpage. Look into source of nodes, which are shipped with FreeBSD. They are really nice examples of netgraph code. A> 3) What are the different types of errors which we A> can induce in TCP/IP connection A> to test the reliability of TCP/IP What kind of errors do you mean? There can be definitely two types: - normal network errors, such as packet loss, delay, duplication, checksum mismatch and else... - errors in particular implementations of TCP What kind do you want to simulate? -- Totus tuus, Glebius. GLEBIUS-RIPN GLEB-RIPE
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