From owner-freebsd-hackers Wed May 1 07:15:50 1996 Return-Path: owner-hackers Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id HAA10857 for hackers-outgoing; Wed, 1 May 1996 07:15:50 -0700 (PDT) Received: from grapenuts.bellcore.com (grapenuts.bellcore.com [192.4.4.35]) by freefall.freebsd.org (8.7.3/8.7.3) with SMTP id HAA10851 for ; Wed, 1 May 1996 07:15:47 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by grapenuts.bellcore.com (8.6.9/8.6.10) with SMTP id KAA06495; Wed, 1 May 1996 10:13:34 -0400 Message-Id: <199605011413.KAA06495@grapenuts.bellcore.com> X-Authentication-Warning: grapenuts.bellcore.com: Host localhost didn't use HELO protocol From: Andrew Heybey To: Luigi Rizzo cc: hackers@freebsd.org Subject: Re: Fast IP/TCP checksums ? In-reply-to: Your message of Wed, 01 May 1996 14:54:46 +0200. <199605011254.OAA08931@labinfo.iet.unipi.it> Date: Wed, 01 May 1996 10:13:32 -0400 Sender: owner-hackers@freebsd.org X-Loop: FreeBSD.org Precedence: bulk >> Luigi Rizzo said: [Questions about computing checksums 32 bits at a time and the same way on both big- and little-endian machines.] See RFC 1071 for a discussion of these and other properties of the Internet checksum. Note that the formula for incremental checksum updating in this RFC is incorrect--see RFC 1624 for a correct version. andrew