From owner-freebsd-net  Tue Apr  9 19: 1:23 2002
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To: Julian Elischer <julian@elischer.org>
Cc: net@freebsd.org
Subject: Re: IP checksup update 
In-reply-to: Your message of "Tue, 09 Apr 2002 17:28:07 PDT."
             <Pine.BSF.4.21.0204091727110.57350-100000@InterJet.elischer.org> 
Date: Tue, 09 Apr 2002 19:01:17 -0700
From: Bakul Shah <bakul@bitblocks.com>
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> > >       (c) -= (u_int16_t)  *((u_int16_t *) (np));              \
>              ^^ hmm should that be "+=" ?

I believe your original code is correct.  See the paragraph
right before section 6 on Page 4, rfc1624.

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