own IPv6 zones but no IPv6 uplink

Fri Jul 11 15:45:38 UTC 2014

We have a local DNS server providing local IPv6 zones (fd44:...).

The server itself is reachable via IPv4 and IPv6 but has no IPv6 uplink.

With our current configuration everything works well, but we've a lot of errors in the logfile:

"Jul 11 17:39:48 zk223 named[5383]: error (network unreachable) resolving 'askubuntu.com/A/IN': 2400:cb00:2049:1::adf5:3a8e#53"

How can we suppress them without disabling IPv6 globally?