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Merge branch '2183-tweak-the-safe-edns-udp-size-to-1432' into 'main'

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Change the safe edns-udp-size from 1400 to 1432

Closes #2183

See merge request isc-projects/bind9!5228
This commit is contained in:
Ondřej Surý
2021-06-23 19:00:59 +00:00
parent cc39e4c8cf 4266f6dd2b
commit 30b23706d6
3 changed files with 6 additions and 2 deletions
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4
CHANGES
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@@ -1,3 +1,7 @@
5666. [func] Tweak the safe "edns-udp-size" to match the probing
value from BIND 9.16 for better compatibility.
[GL #2183]
5665. [bug] 'nsupdate' did not retry with another server if
it received a REFUSED response. [GL #2758]

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doc/arm/reference.rst
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@@ -3503,7 +3503,7 @@ Tuning
a estimated path MTU minus the estimated header space. In practice, the
smallest MTU witnessed in the operational DNS community is 1500 octets, the
Ethernet maximum payload size, so a a useful default for maximum DNS/UDP
payload size on **reliable** networks would be 1400.
payload size on **reliable** networks would be 1432.
Any server-specific ``edns-udp-size`` setting has precedence over all
the above rules.

2
doc/notes/notes-9.17.6.rst
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@@ -42,7 +42,7 @@ Feature Changes
estimated header space. In practice, the smallest MTU witnessed in the
operational DNS community is 1500 octets, the maximum Ethernet payload
size, so a useful default for maximum DNS/UDP payload size on reliable
networks would be 1400 bytes. :gl:`#2183`
networks would be 1432 bytes. :gl:`#2183`
Bug Fixes
~~~~~~~~~