Subject: Re: A question about the IP header checksum
To: None <tech-net@NetBSD.org>
From: der Mouse <mouse@Rodents.Montreal.QC.CA>
List: tech-net
Date: 12/05/2007 18:57:43 
> Umm, RFC 791 says this: [...]
> From that, how do you get that 0x0000 and 0xffff are equivalent?

"one's complement".

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