TCP Checksums in mbufs
Julian Elischer
julian at elischer.org
Tue Jan 9 02:59:20 UTC 2007
Lowell Gilbert wrote:
>
>
> Actually, it is as easy as that. And it's exactly the way this kind
> of case is usually handled.
almost.. you need to account for the fact that our computers are 2-s
compliment machines and the checksum is a 1-s compliment checksum
>
>> I think it's given in one of the RFCs but I think it may also
>> be used in the tcpmss port, or possibly the mss fixup code in ppp.
>> I know I've used it somewhere but forget where :-)
>
> RFC 1071, but that doesn't include the code. Just the one-sentence
> explanation of what to do. [And several more sentences of
> explanation...]
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