I'm seeing a problem where drill makes UDP queries over IPv6 on 64-bit arch to a nameserver by IP address (but not by name). amd64 and sparc64 are both affected. I'm running ldns 1.5.1 on OpenBSD. First, what works: drill -4 some.fqdn @ns-name drill -4 some.fqdn @85.158.xx drill -6 some.fqdn @ns-name drill -6 -t some.fqdn @2a01:348:108:xx drill -6 -t some.fqdn @2a01:348:108:xx these respond with correct results immediately. But, this doesn't: drill -6 some.fqdn @ns-name <delay, consistently 6.30s +/- 0.01s> error: Could not send or receive, because of network error ;; No packet received Any ideas? Can anyone confirm whether this affects 64-bit arch with other OS please? Thank you.