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To: "Prasad Dandra" <dbprasad@gmail.com>
References: <e44b2e860710162346o2f8dfab8i52f99d5fede435fe@mail.gmail.com>
From: Lowell Gilbert <freebsd-questions-local@be-well.ilk.org>
Date: Wed, 17 Oct 2007 10:37:35 -0400
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	(Prasad Dandra's message of "Wed\, 17 Oct 2007 12\:16\:49 +0530")
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Cc: freebsd-questions@freebsd.org
Subject: Re: Regarding Flow of sendto (UDP) using IPv6.
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"Prasad Dandra" <dbprasad@gmail.com> writes:

> I have some doubts regarding the BSD stack flow.
> I am very much interested to know the code flow from sendto (UDP case) upto
> udp6_output function when used in IPv6 client (simple client) and also how
> the local port and destination address are assigned without using bind
> when 1st time the sendto is called i.e  where the pcbconnect and pcbbind are
> called (particularly in case of ipv6)?
>
> Any information provided about the links, books to be refered for more
> details will also be helpful.

Bear in mind that the IPv6 implementation in FreeBSD has recently been
exchanged for a different one, but I don't think the basic concepts
are much changed.  For that matter, the IPv4 model (which has plenty
of book documentation covering it) isn't very different.