There has been some discussion of late about DNS MTU sizing and EDNS0
"fall-back".
I've found another "culprit" in the program DNSMASQ - distributed with
FedoraCore 10
and later versions of RedHat.
to wit:
-P, --edns-packet-max=<size>
Specify the largest EDNS.0 UDP packet which is supported by the
DNS for-
warder. Defaults to 1280, which is the RFC2671-recommended
maximum for eth-
ernet.
Is there any interest in revisting this RFC or should we be happy with a
functional limit
on EDNS0 message size being 1280 bytes?
--bill
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