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Dear all,

a minor correction: The ID describing the CRC32C is still
in the RFC editors queue and therefor not a RFC yet.

Therefore SCTP implementations using Adler32 are not 'outdated'
but the only ones which are compiliant to current RFCs.

Adler32 is the default checksum of the sctplib and will be changed
AFTER the ID describing the CRC32C is a RFC. The user of the
sctplib can specify which algorithm he wants to use. For an
example see sctplib/programs. Both algorithms are supported by
the sctplib.

Unfortunately the default values of the sctplib and the socketapilib
are not the same. This will be changed in a future relese of the
socketapilib.


Michael Tuexen Tel.: +49 89 722 47210
Siemens AG Fax: +49 89 722 48212
ICN WN CC SE 7 e-mail:
Michael.Tuexen AT siemens.com

> -----Ursprüngliche Nachricht-----
> Von: Thomas Dreibholz
> [mailto:dreibh AT exp-math.uni-essen.de]
> Gesendet: Mittwoch, 28. August 2002 12:31
> An: Oon Heok Kee;
> discussion AT sctp.de
> Betreff: Re: [SCTP-Discussion] How to modify certain parameters?
>
>
> Am Dienstag, 27. August 2002 15:58 schrieb Oon Heok Kee:
> > I have also checked my program on Ethereal, and it seems
> like I'm always
> > getting an error on the Adler32 checksum. The program works
> perfectly
> > though. Are there any known errors on this?
>
> The current version of the socket API uses CRC32 as default,
> since the SCTP
> checksum algorithm has been changed from Adler32 to CRC32.
> This is documented
> as an Internet Draft, to become RFC some day and replace the
> definitions of
> RFC2960. To set the sctplib to use the old Adler32 checksum,
> use the function
> "sctp_enableCRC32(0)" before creating any SCTP sockets.
> Note, that programs using Adler32 can only communicate with
> Adler32 programs,
> CRC32 only with CRC32 programs. Recommendation: Use CRC32,
> Adler32 is only
> necessary to interoperate with out of date SCTP implementations.
>
>
> Best regards
> --
> ==============================================================
> =========
> Dipl.-Inform. Thomas Dreibholz
>
> University of Essen, Room ES210
> Inst. for Experimental Mathematics Ellernstraße 29
> Computer Networking Technology Group D-45326 Essen/Germany
> --------------------------------------------------------------
> ---------
> E-Mail:
> dreibh AT exp-math.uni-essen.de
> Homepage: http://www.exp-math.uni-essen.de/~dreibh
> ==============================================================
> =========_______________________________________________
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> http://www.sctp.de/mailman/listinfo/discussion
>

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• AW: [SCTP-Discussion] How to modify certain parameters?, Tuexen Michael, 08/28/2002
  • <Possible follow-up(s)>
  • AW: [SCTP-Discussion] How to modify certain parameters?, Tuexen Michael, 08/28/2002

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