[Yeti DNS Discuss] KROLL status. Plus a question about double-signing!

Geoff Huston gih at apnic.net
Thu Aug 4 04:12:24 UTC 2016

Hi Davey

I presented on large IPv6 packets at the May RIPE meeting

The presentation is at: http://www.potaroo.net/presentations/2016-05-23-bigipv6.pdf - key message: "Hosts should use the largest locally supported MTU for UDP (and use a 1,220 MSS for TCP)”

A write up of the presentation can be found at: http://www.potaroo.net/ispcol/2016-05/v6frags.html



> On 2 Aug 2016, at 6:11 PM, Davey Song(宋林健) <ljsong at biigroup.cn> wrote:
> Dear Geoff
>> The risk with double signing is of course the larger response size of the
> query for the DNSKEY of the root zone, and the problem there lies in the
> issues relating to UDP packet fragmentation and IPv6.
> I once heard your presentation on IPv6 DNS fragmentations in which you gave
> some cautious suggestions for IPv6 DNS operation. Can you do me a favor to
> send me a link to the slides or the article you wrote on this regards. Thank
> you.
> Davey
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