From owner-freebsd-bugs  Thu Sep 13 10:51:26 2001
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Date: Thu, 13 Sep 2001 13:51:17 -0400 (EDT)
From: Garrett Wollman <wollman@khavrinen.lcs.mit.edu>
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To: Dima Dorfman <dima@unixfreak.org>
Cc: freebsd-bugs@FreeBSD.ORG
Subject: Re: kern/30524: 4.4-RC4: panic in icmp_reflect [WITH PATCH] 
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<<On Thu, 13 Sep 2001 04:50:02 -0700 (PDT), Dima Dorfman <dima@unixfreak.org> said:

>  Unforunately, the commit log doesn't provide any rationale for the
>  change, just reassurance that it probably doesn't break anything.
>  Garrett (cc'd), can you provide any insight on this?

The standard requires that hosts accept broadcasts and multicasts
while unconfigured, just as they are supposed to be able to send them
(with source address 0.0.0.0).  4.2BSD got this wrong.  This was one
of the issues in the way of correct DHCP client operation without
requiring BPF.

-GAWollman


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