> On Jan 23, 2015, at 10:01 AM, Paul Hoffman <[email protected]> wrote: > > What is the problem with #2? IP fragmentation happens, and The Internet is > expected to work with it. That is, of what possible value is "inform their > customers"?
The Internet has unfortunately decreed that Fragmentation Does Not Work with IPv4, and Really Does Not Work with IPv6. This will cause timeouts until the resolver realizes it should use a smaller EDNS0 MTU and in that case, the resolver will failover to TCP for that query, which some in the DNS community view as anathema... -- Nicholas Weaver it is a tale, told by an idiot, [email protected] full of sound and fury, 510-666-2903 .signifying nothing PGP: http://www1.icsi.berkeley.edu/~nweaver/data/nweaver_pub.asc
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