Hi,
trying to get DDNS working.
Works fine unless I am using EDNS with ClientSubnet.
My setup is:
client -> dnsdist (server A) -> dnsdist (server B) -> pdns (server B).
I am using "useClientSubnet" on both dnsdist instances.
When set, pdns does not react to update messages at all. I compiled
using the debug flag to get additional output. But everything I can see is:
Received a packet 219 bytes long from 127.0.0.1
Received a packet 219 bytes long from 127.0.0.1
Received a packet 219 bytes long from 127.0.0.1
(multiple times because of retires).
When I disable useClientSubnet it works as expected.
I even did a capture to compare the packets and the difference is only
in the additional records:
When it works:
1 additional record with type TSIG, class ANY
When it does not work:
3 additional records with a) type TSIG, class ANY b) type OPT with
client subnet c) type OPT with client subnet.
Might there be a bug which prevents DDNS from working when there are
other EDNS records? Or am I missing anything regarding the DNS
specification?
At least it is suspicious that there is no further output after
"Received a packet 219 bytes long from 127.0.0.1"...
I am using:
client: Raspbian with ddclient 3.8.3
server A: Arch (up2date) with "dnsdist 1.2.1 (Lua 5.3.4) Enabled
features: dnscrypt libsodium protobuf re2 systemd"
server B: Gentoo (up2date) with "PDNS 4.1.1, Features: botan2.3 sodium
openssl lua verboselog"
Thanks and best regards!
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