[Dibbler] DDNS Update problems

Daniel Baeza (Red y Sistemas TVT) d.baeza at tvt-datos.es
Tue Jun 17 11:52:30 CEST 2014

Hi all,

Im having a DDNS update problem with version 1.0.0RC1.
Im using dibbler-server in a "production" enviorement with arround 1k 
DOCSIS eRouters IPv6 compatible and "cant say how many" direct IPv6 
lease to CPE (Customers connected directly to our Cable Modem with no 

This is my conf regarding to DDNS UPDATE:

ddns-protocol any
ddns-timeout 1000
fqdn-ddns-address 2a04:XXXX:1::101
         secret "XXXX==";
         algorithm hmac-md5;

Note that IP and secret are the correct ones in my conf but cant print 
it here.

All should be working well, but in my log i recieve:

2014.06.17 11:04:17 Server Debug     FQDN: FQDN option received: fqdn 
2014.06.17 11:04:17 Server Debug     Requesting FQDN for client with 
2014.06.17 11:04:17 Server Info      FQDN: Client requested (Mary), 
assiging (2a04-XXXX-1000-0-c28f-ab8a-c548-3496.ipv6.tvt-datos.es).
2014.06.17 11:04:17 Server Debug     FQDN: Adding FQDN Option in REPLY 
message: 2a04-XXXX-1000-0-c28f-ab8a-c548-3496.ipv6.tvt-datos.es, FQDNMode=2
2014.06.17 11:04:17 Server Debug *FQDN: Skipping DNS Update.*

It always skip the dns update but I cant find why.
I tried with DQDNMode 1 and 2, same result in both.

Any help would be really appreciated.


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