In your previous mail you wrote: To take in consideration your (useful) remark, the proposal could be improved by replacing a SHOULD by a MAY: - IPv6 hosts MAY accept UDP zero checksums (but of course MUST still send non-zero UDP checksums). - v4 to v6 translators MAY either compute UDP checksums when receiving UDP zero checksums OR translate with the zero checksum unchanged. => if you believe this non-issue still needs a solution in standards IMHO it is far better to deprecate zero UDP checksums. If you don't believe just reuse RFC 2765 choice.
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