Ethereal-users: [Ethereal-users] Question about IP checksum

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From: "Gyunam Cho" <earl@xxxxxxxxxxxx>
Date: Fri, 30 Jun 2006 18:08:41 +0900

1.       Question about IP checksum calculation

A.        If the ip checksum of received packet is 0xFFFF ,  then is it correct  or bad checksum.

                                     i.              Ethereal 0.99 says that checksum 0xFFFF is correct,

                                   ii.              SnifferPro 4.5 says  it is incorrec and should be 0x0000

B.       Ethereal  supports  RFC1141 or RFC1624 for ip checksum calculation ?

 

 

Regards

 

Gyunam Cho

Senior Manager

Network Development Team 2

 

Ubiquoss Inc.

24F Millennium B/D, 467-12, Dogok-dong,

Gangnam-gu, Seoul 135-700 KOREA

T. +82-2-2190-3191

M. +82-16-260-9587

F. +82-2-2190-3202

e-mail: earl@xxxxxxxxxxxx

 

 

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