[Doh] EDNS UDP Payload size cache issue
bert hubert <bert.hubert@powerdns.com> Wed, 06 June 2018 12:13 UTC
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Date: Wed, 06 Jun 2018 14:12:58 +0200
From: bert hubert <bert.hubert@powerdns.com>
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Subject: [Doh] EDNS UDP Payload size cache issue
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Hi, The draft suggests zeroing the DNS ID field to make sure queries can be cached. One other field that needs to be made constant is the EDNS payload size. If a client requests DNSSEC, there will always be such a field, but it has no meaning over DOH. So it can safely be set to zero. Suggested text for insertion near the end of "5.1 The HTTP Request": Similarly, if an EDNS payload size is specified, it SHOULD be set to 0 in every DNS request, as this field has no meaning within this protocol. Bert.
- [Doh] EDNS UDP Payload size cache issue bert hubert
- Re: [Doh] EDNS UDP Payload size cache issue Star Brilliant