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Re: The IANA has assigned us DNS number 99 for SPF

2005-07-12 04:23:16
* Alex van den Bogaerdt:

On Tue, Jul 12, 2005 at 12:59:12PM +0200, Florian Weimer wrote:

sixxs.com. TYPE99 \# 11 763D73706631202D616C6C

the "11" is the "length indicator", the RDATA being 11 long.

Ahem. TXT records are a sequence of PASCAL-style strings, each
preceded by its own length octet.  So the above blob is not a valid
RDATA part of a TXT RR.

Part of the packet, dumped using tcpdump:

        0x0040:  2400 0b76 3d73 7066 3120 2d61 6c6c c00c  $..v=spf1.-all..

"00 0b" is the length field in front of the RDATA field.  The
substring length indicator in the RDATA field is still missing.

minus-all.spf.rtype.example.enyo.de has a correctly formatted SPF
record, minus-all.invalid.spf.rtype.example.enyo.de is the incorrect
version.


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