Author: R.Odom (30 Oct 08 6:05pm)
OK, just over a year later, installing a new honeypot and I'd forgotten about this! Much head-scratching ensued again until a quick Google turned up this answer :-(
If you're using Firefox, a quick way to turn off IPv6 is to type "about:config" in your address bar, find the value "network.dns.disableIPv6" and set it to "true". Visit your honeypot again, and it'll now validate OK. Set the config value back to "false" once you've validated OK.
And, if I may, I'd now like to second the request for IPv6 support once again!