lkml.org 
[lkml]   [2003]   [Sep]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: Incremental update of TCP Checksum
From
Date
On Tue, 16 Sep 2003 11:50:16 PDT, Vishwas Raman <vishwas@eternal-systems.com>  said:

> Can anyone out there tell me the algorithm to update the checksum
> without having to recalculate it.

The canonical source is the RFCs:

1071 Computing the Internet checksum. R.T. Braden, D.A. Borman, C.
Partridge. Sep-01-1988. (Format: TXT=54941 bytes) (Updated by
RFC1141) (Status: UNKNOWN)

1141 Incremental updating of the Internet checksum. T. Mallory, A.
Kullberg. Jan-01-1990. (Format: TXT=3587 bytes) (Updates RFC1071)
(Updated by RFC1624) (Status: INFORMATIONAL)

1624 Computation of the Internet Checksum via Incremental Update. A.
Rijsinghani, Ed.. May 1994. (Format: TXT=9836 bytes) (Updates
RFC1141) (Status: INFORMATIONAL)

http://www.ietf.org/rfc/rfc1071.txt
http://www.ietf.org/rfc/rfc1141.txt
http://www.ietf.org/rfc/rfc1624.txt
[unhandled content-type:application/pgp-signature]
\
 
 \ /
  Last update: 2005-03-22 13:48    [W:0.149 / U:0.236 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site