[bind10-dev] unknown SERVFAIL

[Jeremy C. Reed]

On a new startup, my first query was for whitehouse.gov and received 
SERVFAIL. I got a bunch of:

(09:11:31) jreed: 2011-08-05 08:51:38.945 ERROR [b10-resolver.asiolink] 
ASIODNS_SEND_DATA error 65  sending data using UDP to 2001:503:a83e::2:31(53)

2011-08-05 08:51:38.965 ERROR [b10-resolver.nsas] NSAS_INVALID_RESPONSE 
queried for d.gtld-servers.net. but got invalid response

Then did a dig for isc.org. That worked. Then immediate dig for 
whitehouse.gov again and that worked.  From this logging I can't really 
know what caused this.  65 is EHOSTUNREACH (No route to host)

So that system has IPv6 but not IPv6 network. Maybe it didn't or 
couldn't fallback to IPv4?