[dns-operations] fragmentation avoidance

Paul Vixie paul at redbarn.org
Fri Apr 17 23:12:44 UTC 2020

On Friday, 17 April 2020 22:48:08 UTC Mark Andrews wrote:
> ...
> Or we could adopt the well known TSIG approach and defeat
> fragmentation attacks that way.  This works for both IPv4 and IPv6.

fragmentation's harms extend well beyond dns integrity vulnerabilities. i 
should not have proposed fragmentation in EDNS, and now we have to go undo 
that part and start again on the datagram size tension headache. see here:



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