[Pdns-users] DDNS with ClientSubnet(EDNS) not working

[spamspamsda...@gmail.com]

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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Re: [Pdns-users] DDNS with ClientSubnet(EDNS) not working

[bert hubert]

Dear mr "SpamSpamsdasda",

Please email this list again when you've at least made a token effort to
take us seriously.

I do not appreciate it when people require anonymous help and blatantly
disregard that there are real human beings here trying to help, but you do
not even give them the courtesy of making up a credible fake name.

Bert
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